IL Track Tested: 2011 Infiniti IPL G Coupe

Wow, this is substantially worse than the 5spd auto G37 coupe you tested in 2008. The acceleration time is slightly slower, braking is worse and the slalom is much, much slower. It's also worse across the board than the last 6MT coupe you tested. And the 7spd auto sedan you tested crushes it.

http://www.edmunds.com/infiniti/g37/2009/road-test-specs2.html

I'm recording 0-60 in less than 5 seconds (1ft rollout) for my G37S 6MT sedan on my Racelogic VBox with just exhaust and ECU mods (like this car), so this is not a good showing for IPL. Should have been closer to 5 flat and a 13.5 quarter mile.

Nope, not a good launch for the "performance" lineup at all.

Some valid points there that have too many variables to answer and I'm going to skip to my main point: Not calling BS at all, but send me your VBO files ( submissions (at) edmunds.com ) from the Vbox. Want to see how a modded G pulls.

-mm

But blueguy, that dorky front lip spoiler is priceless...

So the answer to your question is.............

No.
BD

I hate to be one to judge by numbers alone, as I haven't driven the car... But those are not the numbers of a 50k performance coupe. Since too many customers in this price class shop by petty numbers such as these...this is disheartening news for Infiniti's IPL launch vehicle.

Sure Mike, now I gotta go buy a card reader for my laptop :) Can I just send you a photo of the screen? I'll go make some passes tomorrow morning.

Or, you guys can just have the car for a day or two. Just about to throw some new swaybars on it. You're probably better at launching than I am anyways. Tell JK to come pick it up next time he's down at DiBella's place.

I think Mr Church is legit in his dyno and tuning abilities:

http://home.earthlink.net/~spchurch/

In any case, this car certainly doesn't look as good as the lesser G37s, besides offering no real advantages in handling, braking or performance for a lot more money.

$50K? Seriously?
GT500, SRT8, 335is, and at least twenty others i would consider before this. Hope for Infiniti's sake that this car was a lemon and not representative of the future of IPL cars.

it is real Skyline GT-R is IPL will be faster. it is twin turbo V6 and 350 HP.

what kingon said.

Egads. Once again the G37S sedan is the only G to get.

that is sad, I guess when I said the 1M was the slowest $47k sports coupe, this really wanted that title.

While I am usually the first one to say 0-60 times are overrated, $49k base for this kind of number is quite disappointing.
This begs for the question--where did the 348 ponies go? With this kind of horsepower rating I was expecting 0-60 to be in the very low 5's or even high 4's.
Germans seem to have a way to utilize the available ponies the Japanese and Americans can't quite.

Wow! That is awful. I just looked up the stats for a V6 mustang and it beats the infiniti in EVERY measure.
V6 mustang (W/ 3.31 gear)

0-60=5.6
slalom=68.6
skip pad=0.91g
braking-60-0=103 feet
base price=22,995 (for performance package add 1,995)

So go ahead and buy two V6 mustangs.

That is the worst factory body kit I have ever seen! Unreal.

e90_m3: because german's always underrate their cars

used R35 GTR going for 56k on autotrader :)

Dang, why are the sedans always faster than coupe. A buddy of mine told me my 06 G seemed a lot faster than his coupe, but I thought he was just talking. I think this has a lot to do with the dimensions of the cars. I honestly believe that Nissan doesn't quite tune the G coupe as well as the sedan since the coupe is so close to the Z. The G coupe is the Z with an added backseat and weight. This doesn't equal the same performance. On the other hand, the sedan is a different beast that seems to be engineered a little different. This is just laziness on Nissan's behalf.

i agree these numbers are not impressive but also remember that these engines are better after 30k miles. It only has 3500

As stated above, what an ugly bodykit. WTF? Did Toyota develop it?

I can also think about 25 cars I would rather have for the money. Maybe 50.

I don't have time to list them all but I would start with an S4....

I agree with the other comments that the body kit is horrible, thay actually made the car look worse.

Why do carmakers think they have to make new models, bigger and fatter, until they are no longer desirable? Then they start over. I don't get it.

Embarrassing.

Yawn................ Just another way for Infiniti to charge more for their cars without delivering a real performance benefit. Anybody who wants better performance from their G37 should just spend the extra money on aftermarket parts instead of these subpar performance IPL parts.

Body kit? This car has a lot more important problems than a body kit that I didn't even notice. Remember, the most important parts are inside and underneath. Body kits are not important, nor are they worth anything.

This car is really underwhelming, isn't it? Nissan is a GM trying to have a premium performance brand with good credentials. This is a difficult task for a company that basically makes Altimas and Sentras with CVTs.

Infiniti should keep their focus on providing upscale sedans, with good performance, at a lower price point than the Germans. I don't think that going head to head with BMW and Audi will work for Infiniti, because it takes too long to establish credibility.

And it's just not worth the effort. Those who can't afford the BMW or Audi (I deliberately won't include MB, because, except for their ultra-expensive cars, MB basically makes Lexuses.) can fall back on an Infiniti, if they choose, or any number of other wannabe-German brands. And that is as close to competitive as Infiniti will get-- in my opinion, of course. Disclaimer: I haven't driven any of the above. Only know what I read.

A waste of money I.M.O

Again with the fogs. Why not drving lights that could be used far more frequently than fog lights?

Something is definitely wrong with this test vehicle from a performance standpoint (price too but I'll get to that in a second). No way should it be slower than a 6MT Coupe/Sedan or even a 7speed auto sedan. And it's really not close. I've seen tests with other sites for sedan/coupe in the low 5 second range, 5.2 or 5.3, if I recall correctly. I'm an Infiniti fan, own a sedan with the sport package but there is no way IPL is worth the money or even makes sense. This is a big disappointment. And I won't even get into the looks (useless appearance parts). For this price, a 335i is a bargain and is clearly better and I'd be actually embarrassed if I were Infiniti. This is what they came up with?

I agree this is not worth the money (unless we find out later that the car tested was a standard G37 coupe with an IPL badge on the trunk... but I highly doubt that)

As church123 said, previous tests have shown that both the standard G37 coupe and the even the heavier sedan have put up better numbers.

And like maximus5201, I have a sedan with the 7 speed auto and I really don't see any incentive in going with this IPL coupe over my sedan. Obviously one is a sedan and one is a coupe, but when the larger, more practical (and cheaper) sedan weighs more with the same VQ engine and can outperform it, there is something either terribly wrong or just flat out disappointing about the IPL coupe.

Definitely not a good start to the IPL brand.

Wow, those performance figures are pretty disappointing. How can it be slower than a standard G37? Maybe they just got an abused test car or it had worn out tires on it... I'll give Infiniti the benefit of the doubt and reserve judgment until I see figures from other car publications and websites.

Yes I agree with most of the comments... That IPL body kit is not attractive. A regular G37 S is much better looking.

Probably a lemon, but at that price, s4 por favor.

Wow, those numbers suck big big time!

Don't forget, Infiniti has an IPL sedan too!!!

"Not a fan of the engine drone and gear whine"

Sounds like the LT Z.......like a Hoover with a broken hose.

I'm a huuuuuuggge Nissan fan. Owned several, several Nissan/Infinitis over the years, but this is just pathetic. My '06 TL 6spd will beat this.

Also, how can the motor that used to be absolutely perfect in every way imaginable now sound and feel junky? That's sad. The VQ in my '97 Maxima SE 5spd, best motor ever.

"how can the motor that used to be absolutely perfect in every way imaginable now sound and feel junky? "

Absolutely perfect? Give me a huge break......In the Long Term Z it sounded like crap even though it pulled strong and seems well built. Nothing is "perfect" my friend.

+1 AJT123, I'm with you on the '97 Maxima 5spd. I had the GXE, but it was a sweetheart with some choice suspension mods. The architecture must be considerably different in the 3.7VQ. Disappointing. I have the 3.5VQ in the G35, but it gives up all silkiness at the higher revs compared to the 3.0. If the G35 could be under 3,000lbs, I'd take the old 3.0VQ in it!

such a disappointment, i rather get a nismo 370z and a beater daily driver for that money. my modified evo x mr doesnt even cost that much including mods and tuning and it did 0 to 60 in 3.8 and run 12 flat on the 1/4 mile. but power isnt everything, swap the car out with 18 inch lighter wheels, change out the coilovers and get slightly wider tires that are 200 treadwear below can do wonders.

I agree. Infiniti's first performance line attempt has failed miserably. Anything produced under the 400hp mark, these days, seems rather "commonplace". I have a TL SH AWD 6spd and i'm pretty sure i can smoke this IPL G. In fact, i'm pretty sure a simple cold air intake and a good grounding system can blow this IPL G away according to the numbers posted. My question is. Why did they stay with NA instead of a single turbo? In fact, why not lighten the body by a couple hundred lbs, force induce the VQ37HR to 400hp and 350lb-ft torque. This new engine design compared to the old VQ35DE is exceptionally more stronger as well as more reliable and I'm told it can handle alot more horsepower the way it is.
If these numbers are correct, then I suggest someone call NISMO engineers. They are already renowned for their world class performance lines and racing pedigree. I simply have a hard time believing that Nissan cannot produce a worthy M3, AMG, and RS fighter. Time to fire the relatives at Nissan Mo Co I guess and bring in real professionals to do it right. Bad choices result in bad result. Very disappointing Infiniti, you just crushed your own momentum and you were almost there. Tisk Tisk.

I agree. Infiniti's first performance line attempt has failed miserably. Anything produced under the 400hp mark, these days, seems rather "commonplace". I have a TL SH AWD 6spd and i'm pretty sure i can smoke this IPL G. In fact, i'm pretty sure a simple cold air intake and a good grounding system can blow this IPL G away according to the numbers posted. My question is. Why did they stay with NA instead of a single turbo? In fact, why not lighten the body by a couple hundred lbs, force induce the VQ37HR to 400hp and 350lb-ft torque. This new engine design compared to the old VQ35DE is exceptionally more stronger as well as more reliable and I'm told it can handle alot more horsepower the way it is.
If these numbers are correct, then I suggest someone call NISMO engineers. They are already renowned for their world class performance lines and racing pedigree. I simply have a hard time believing that Nissan cannot produce a worthy M3, AMG, and RS fighter. Time to fire the relatives at Nissan Mo Co I guess and bring in real professionals to do it right. Bad choices result in bad result. Very disappointing Infiniti, you just crushed your own momentum and you were almost there. Tisk Tisk.

When the IPL addition was tested by C/D and M/T they managed 5.1 and 5.2 sec respectively, so I am not sure why IL got 5.8 seconds. As far as price, it's still a much better deal then a 335I, and much more reliable. You also don't need a twin turbo to deliver solid numbers like you can in the G37 IPL

Big Nissan fan, but no where near liking this car.
Let's hope Nissan gets a taste of whats been said here and does something about it.

If IPL could be as good as anything Nismo, then we might have something to be had.

A lot of posters have mentioned weight, one thing to keep in mind, a comparably equipped coupe weighs MORE than the sedan. Sounds crazy but it does. Something about additional bracing for side impact proection (gov't regs) in the coupe that's not required in the sedan. But the packages have to be similar, i.e. sport package or AWD. But a couple of hundred pounds is not going to account for a half second difference to 60. Something else is the culprit.

As for shogunwars comment, I agree completely. It can be done. I guess this wasn't meant to be a direct competitor for the M3, AMG 63 or Audi S4/S5 but they have the engine already in their arsenal. All they have to do is slightly detune the Nissan GT-R engine (as is probably too radical for a luxury car) but it's very possible and won't require a completely new engine.

ARE YOU SERIOUS 50K FOR SOMETHING THATS SLOWER THAN A FORD TAURUS SHO YOU GOTTA BE KIDDING OMG AGAIN IT HAS THE SAME HANDELING NUMBERS AS THE SHO NISSAN AND INFINITI IS GETTING WORSE AND WORSE FIRST ITS WAS THE NISSANS CVT'S NOW ITS OVER PRICED NON PERFORMING PERFORMANCE GROUPE ALL EXCEPTING THE NEW M BUT WHEN YOU PUT THAT HEAD TO HEAD WITH A SUPERCHARGED XF IT STILL FALLS SHORT

Those are horrible stats.

Good point Maximus. But the GTR motor is as i understand, completely handbuilt. Thus the huge degree of fluctuations in WHP. Handbuilt engines are expensive my friend. I am still optimistic that Inside Line's performance test figures were in somehow affected by external forces. Having driven the G37 coupe extensively - and i do prefer the 7spd auto vs the 6spd - i can definitely say that its the real thing. The problem lies at corporate i think.
RE: Weight reduction. Actually, i believe this can be done. See E46 M3. See Integra Type R. It all starts at the think tank at Infiniti. I'm sure you'll agree that swapping the extra cost for the unsightly ground effects in lieu of more aluminum or carbon fiber applications would minimize production costs and increase performance. See Corvette 3100 lbs curb weight. NSX at 3100 lb curb weight. just to name a few. In my opinion, they should have removed the sunroof, leather seats, side airbags, Navigation, even the backup camera all in the name of weight and cost savings. Real performance enthusiasts need none of these things. Our joy comes from the pure adrenaline of driving a superbly engineered street legal racecar. In my opinion, Infiniti truly needs to do some Soul Searching as this car is proof that they have lost their mojo.

So does it have a real limited slip = yes or no?
Being stuck with run-flat/crap tires appears to = no

jmess. Dear sir. the infiniti g37 coupe sport pkg includes the rear ltd slip diff. At lease here in Canada. And yes, i agree. run flats suck. except when you blow one at high speed, then they're great! personally, i insist on using nitrogen in my TL SH AWD. costs a little more, but its definitely worth it in the long run.
cheers.

bodyblue,

____

"how can the motor that used to be absolutely perfect in every way imaginable now sound and feel junky? "

Absolutely perfect? Give me a huge break......In the Long Term Z it sounded like crap even though it pulled strong and seems well built. Nothing is "perfect" my friend.
____

The 97 Maxima had a 3.0L V6. 350Z got a 3.5L.

That old 3.0L V6 was indeed a beaut. I had the best version IMHO in my 01 Maxima, 222HP and smooth as a turbine. Terrible stickshift but the engine made it worth it. NVH problems started with the increase to 3.5L.

If Nissan could make it's big V6s that smooth again, all this noise about lack of refinement would go away overnight. Easier said than done with all that displacement I'm sure (but Ford figured it out with their 3.7L V6, so did Acura).

-Rod

I honestly think I am going to stop reading this site. Their stories are usually late, poorly written, missing or incorrect data and the writing is terrible. Oh yea, and their drivers should take lessons from Car and Driver. My 2007 Honda Accord V6 Six Speed commuter car can hit 60 in less than six seconds with the proper driver. Now I know this is a FREE online magazine but with all the money GM must pay for us to have to look at the new Cruze I hardly call that free. One great aspect, the long term road test. Take that portion and edmunds.com, combine them and call it a day. I actually enjoy getting my Car and Driver in the mail and flipping through the pages and reading the well written articles. Where are the comparison tests? I'm sorry but insideline has been on the decline in the last year or so.

IPL raises the stakes for money wasted. Put big rims on the car and ruin it... oh and charge more.

IPL = the Camaro RS from the day add ground effects, keep the stock suspension, brakes and engine.

0-60 in 5.8?!?!?! something is very wrong. it's evident that IL is not a fan of infiniti products but if 0-60 is indeed anywhere close to 5.8, then this car is a colossal shame. a solid F-. but i'm highly doubting 5.8 is the right number. lemon or incompetent driver or conspiracy.

unbelievable.

>.> i can get these numbers or pretty close to these numbers with a more practical Acura TL 6SPD with SH-AWD....

this is disappointing to say the least.....

its definitely sexy but the performance sucks...ill stick with the Z

lnfiniti=hyped by illiterates and never lives up to the HP claims. Another dud. Ugly to boot.

IPL-increases Performance Little (worse) lol

What a pathetic brand. And all they are using is NISMO parts

Mike, data sent to you. My Vbox is apparently a little out of date on firmware, so the files are in an older format. For the readers here, I'll post some numbers. Traction was horrid at my "secret" testing spots on public roads due to all the crap left over from the recent storm runoff. But, if you look at segment times, and in particular the best 45-75 time the power differences should be more evident:

Best 0-30 - 2.0 seconds (this should have been a flyer, but I blew the tires off on the 1-2 shift and got sideways in a big way)
Best 0-60 (trac off) - 5.4 sec
Best 0-60 (trac on) - 5.5 sec (the fact that the car was barely slower with trac on should indicate how crappy the traction was
45-75 mph - 3.9 seconds

If you put together the best 0-30 and 30-60 segments you end up with a 5.2 0-60 time, which seems about right versus my best 4.9 time recorded under better conditions.

IMO, this is about what the IPL car should have returned. My car is a G37S 6MT sedan. I weigh in around 240 lbs and I had 20-30 lbs of briefcase, laptop and other crap in the car. Had a half tank of gas. I figure about 3950 lbs all up, give or take. Mods are high flow cats and an ECU tune which returned about 25-30 more hp on the dyno.

Oh, BTW, arigold, ever write anything without hyperbole?

If you put together the best 0-30 and 30-60 segments you end up with a 5.2 0-60 time, which seems about right versus my best 4.9 time recorded under better conditions.
http://www.carsfind.net

Wait what? 48k?

Infiniti has always had more hp and under-delivered performance. It looks like a snow plow and for $50,000 it lacks luxury and performance. What an ugly dud.

I P L- Increases Performance Little (and now worse)

fordfrenzy:

Please turn caps lock off and punctuate.

No one will take you serious if you are SCREAMING at us.

hds6spdmt. Actually R&T posted 0 0-60mph time of 5.2sec and 13.9 sec 1/4 mile for the TL SH AWD 6spd. the 5 lame 5 spd auto is just over the 6 sec mark. my 6spd pulls very nicely and i do notice a significant lag when i test drove the 5spd auto. 2012's new 6spd auto should mimick the manual's performance times.

bodyblue: He was referring to the 97 Maxima, and there is a reason why Nissan's VQ series engine won awards 11 years in a row, and that's because it was the best 6 cylinder on the market period. However, no with Nissan tweeeking the 3.5 and 3.7 liter engines they sound like they are working too hard.

The next gen Engines which are available in the GTR and Japans Fuga are much more solid.... I may be an Infiniti fan boy, but there is a reason why Infiniti's only need scheduled maintenance over the years, while BMW's inline six and Audi peice of crap TDSI engine always break down under only a few years of daily use. Everytime I hear some of the 02 and 03 BMW 3 series roll down the street, the engines sound like they want to die, but the VQ in the old G35 sedan still sounds new. Glendale, CA is flooded with Audi's, BMW's and Infiniti's and the only one's that don't seem to break are the Japanese Intro lux car.

church123. Very impressive results. i noticed you didn't upgrade to dual cold air intakes. may i ask why? i'm told there's no need to modify the headers. the cold air intake applications would give you another 12-15hp and maintain your fuel mileage.

Couple reasons shogunwars.

First of all, I'm not a fan of exposed element intakes, even when they are getting cold air - especially on MAF equipped cars. They get dirty fast and on the MAF cars, tend towards turbulence - especially if the filters are sitting smack in the grill area like some of the G37 CAIs.

Second, I'm not convinced that the gains many of the CAI installations are seeing are entirely legit. I'm not saying they aren't making more hp, because they are. I'm just saying that the MAF calibrations on the CAIs aren't entirely accurate in my experience, leading to a leaner mixture and more timing. This is what we do on the ECU tune (among other things), and in my experience, putting CAI's on and retuning for the same mixture/ignition advance reveals pretty small gains.

Finally, many (most?) of the CAI's require cutting some of the composite radiator core support structure to make them fit. I really have no desire to hack up my $40k car at this point in time. I'm currently looking for a tasteful sounding exhaust which should free up 10-15 hp more, and then I'll be putting on a whole new rear diff with a 4.08 final drive and a Quaife LSD to take advantage of the 8000 rpm rev limit and get rid of the crappy stock viscous LSD. After that, outside of better tires and maybe some lighter rims/rotors I'm done with tweaking this car.

Well said church123. Injen has a cai that will require no cutting at all, if i'm not mistaken. i hear you about the dirt accumulation and our difference of opinion regarding this vs stock intake setup will probably never end... but i'm okay with that as everyone's opinion is valid in their own way. Good luck with your upgrades and i look forward to hearing about your next project.

Thanks. Checked Injen's website and they only have it for the Coupe. Could probably squeeze it onto the sedan, but no guarantee.

lions208487. i will try and elaborate on your VQ30DE vs the VQ35DE and VQ37HR motors. Yes, i do agree. The VQ30DE engines were absolutely magnificent, bearing in mind, that they were detuned from the factory. Now, let's go back to 1998 when Nissan Mo Co was in financial receivership and Renault injected around 40 mill as a result of the merger. Low on funds and high on expectations, part of the turnaround plan at Nissan/Renault was to produce V6 engines that would offer ample competition beating power at a lower overall cost. Yes. Lower overall costs. thus the difference between the VQ30DE's bulletproof strength vs the VQ35DE's poor track record for reliability. Introducing the new VQ37HR motors. Time will tell, however, i really haven't heard of any major problems to date re the VQ37HR motors, unlike the terrible excess oil consumption and total engine failure of some of the VQ35DE's. Same with the 4cyl QR25DE's in the ALtima, etc... this new gen is apparently much better as well.
Re: BMW engines. i'm not a fan of BMW except for the M division, but i'm not entirely convinced that these engines are as bad as you suggest. The 3.0 I6 is a gem. Smooth, torquey and yes, very reliable. And i'm sure you'll agree that not all vehicle owners treat their cars with as much tender loving care as we would. Now, if you're talking about BMW's massive turbo failure attempt, brother, i am completely on board. They should have issued a recall years ago regaring their twin turbo problems. Apparently, it took a class action law suit in California to finally make them cough up the truth and stand behind their mistakes. tisk tisk tisk... I'm wondering if the BMW engines you're hearing is the old 2.3 L inline 6. They, in my opinion, suck the big Kahuna.

Actually. Having just re-read the article above. I am now suspicious re: driver skill level. I wonder if the 7spd auto would bring about different results as the shifting would not rely on driver skill.
Inside Line. Please redo the test with either a different driver or different transmission. Inquiry minds need to know.

I'm not ready to call driver skill just yet. I've tuned a lot of VQ37 engines and a fair number, including my own G37, exhibit occasional instances where the DBW only gives you about 55-60% throttle even when you've got the pedal on the floor. And this is with VDC off.

We still don't know why this happens (and it is more prevalent on automatics), but tuning the ECU and changing the throttle maps seems to eliminate the problem, or at least reduce to the point of sufficient rarity. I think it might have something to do with oil temps, but can't find any correlation during datalogging (the stock ECU does monitor oil temps).

It is possible this IPL car was exhibiting this throttle problem. It's been seen before on Edmunds G37 they used to compare to the Genesis Coupe. See the dyno plot here:

http://blogs.insideline.com/straightline/2009/02/inside-line-dyno-test-hyundai-genesis-coupe-vs-infiniti-g37-coupe.html

Trust me on this, the VQ37 does not have such weak bottom end torque as portrayed. 175 lbs-ft at 2000 rpm is about 50 lbs-ft lower than an "uninhibited" dyno run. I've begun to wonder if it isn't a break in issue too, as the problem seems more common with lower mileage vehicles, but that's purely anecdotal.

"Absolutely perfect? Give me a huge break......In the Long Term Z it sounded like crap even though it pulled strong and seems well built. Nothing is "perfect" my friend."

Re-read my post. I'm talking about a 14 year old Maxima. And the VQ in that was about as close to perfection as you can get. There was a reason the critics said that it "revs like no other engine this side of a V8 Ferrari." It was a gem, torquey as hell down low but is screamed up top and was silky smooth EVERYWHERE.

And combine that with the 5spd, you had a very nice car. Hell, even the auto was 7.6 to 60. In 1995.

Some of you fail to understand that comparing #s on two different days is impossible. If traction was low a half of a second (think about it) is really a blink. So you'll have to compare cars run on those same days.

Also those who think the VQ is harsh or loud...do you have one? I've had a 350Z, a G37S and a 335. The 335 did sound amazing, but you know what my G37s sounds good too. With an exhaust it sounds even better. People tend to read reviews and base things off what they see in 12pt font and not real life.

I don't like the IPL either. I think it's a body kit and a RPM bump. But lets not discount the car as being really good. I got a G37 over another 335. Better deal, more car and slightly less driving satisfaction. But I don't pretend i am a race car driver and think I can feel .2 on 0-60 or .92 vs .91 gs on a skid pad.

Most of the noise on cars these days is tire feathering. Staggered tires can't be rotated and they get very loud...get new tires.

is it just me or is this "performance" of this car version slower than the regular one?

@shogunwars
The VQ37 does have oil consumption issues. There is a TSB (ITB10-048) released from Infiniti for 08-10 G37's

showgunwars: That same R&T article you quoted for the Acura TL had even quicker times for the G37S Sedan 6MT. In fact the G37 was right with the 335i for most of the testing results. Check it out: http://www.roadandtrack.com/tests/comparison/four-door-firepower

But the real question would be if Inside Line can do a side to side comparo of the stock G37S 6MT coupe and the IPL. Are there any measurable improvements to the car? My 08 G37S 6MT with Stillen exhaust, R2C intake, and Hotchkis sways could run rings around the IPL car!!