This is a great engine. V8. All aluminum construction. DOHC. 32 valves. Direct injection. 4.2 liters of displacement. It's smooth, powerful and it revs to its 7,000 rpm redline like its wants to go to 8,000.
It's not the largest V8 in the large, luxury sedan class, and with 372 hp, nor is it the most powerful. But it feels special in the A8, and it's personality and demeanor perfectly match Audi's unique mix of sport and luxury.
But this engine's best feature is...
...the way it looks. Audi sweats the details, and it has detailed the A8's V8 perfectly. I've started opening the sedan's hood just the gawk. Few automakers are still making this kind of effort under the hood. But Audi has turned engine and engine compartment dress into an art form.
Check out the finishes, the shapes and the intricate detailing. Notice the red coils, the badging and the proper display of intake runners. Everything is symetrical. This is the kind of specialness you see on a handmade, one of a kind hot rod designed by guys like Chip Foose. Cars that win the AMBR and Ridler awards.
Audi gets it.
Scott Oldham, Editor in Chief @ 3,134 miles

duck87 says:
10:10 AM, 12/22/11
The details are exceptional (except for the regular worm-gear hose clamps). I guess that's why the Audi R8 has a glass hatch over the engine bay, so EVERYONE can gawk.
They're obviously not in the same league, but your next step would be to pop open the hood of the Toyota Camry, and marvel at the sad plastic engine cover, ugly exhaust header and exposed wires and hosing =D
sniperruff says:
10:48 AM, 12/22/11
@duck87:
I doubt any car below $30k was designed to have an exciting looking engine bay, especially when most are 4 cylinders.
shaddai says:
11:05 AM, 12/22/11
They cover less on my '08 S4 (with the preFSI 40 valve 4.2l V8)... one of my favorite hidden features. :)
zcalvert says:
11:15 AM, 12/22/11
i agree, it is nice that they bothered to get this right. not easy to make a modern, DI engine look good, either.
(although, I imagine something like 99.7% of A8 owners would never even think of opening the hood)
bassrockerx says:
12:33 PM, 12/22/11
it is nice but i still wish there was a little more steel and a little less plastic
northsparrow says:
12:59 PM, 12/22/11
How much oil has this beautiful engine burned already?
Maybe the folks at Audi could sweat the details on the piston rings a bit better.
altimadude05 says:
01:17 PM, 12/22/11
I've maybe opened the hood of my car five times all year. Maybe it make Audi owners feel better that their engine covers are more detailed than anything else on the road, but unless it's a mid-engined car like a Ford GT or a 458 or something...a car where the engine is showcased and needs to look good, who cares what the engine looks like.
All I need are service points that are clearly marked and things that need to be maintained are easy to get to. After that, the hood is closed. How many times has the Fusion Hybrid hood been opened? Sienna? Mazda 3?
90% of the population doesn't do their own car maintenance. I'm willing to bet only 20% know what anything is under the hood. 3% raise the hood and oogle engines. (I'm largely making up those numbers, if you didn't know. Just a guess on my part) The people who like to oogle engines buy engines that look nice. The rest of us don't care one iota. As long as it runs, we don't need to look at it.
shaddai says:
01:22 PM, 12/22/11
They cover less on my '08 S4 (with the preFSI 40 valve 4.2l V8)... one of my favorite hidden features. :)
greenpony says:
02:22 PM, 12/22/11
I remember when Audi used to cover everything with plastic. Glad to see they're opening it up a bit.
bodyblue says:
02:25 PM, 12/22/11
It is a Hundred freaking thousand dollar car. It is easy to "get it" when something costs that much.
acbayard says:
02:27 PM, 12/22/11
Um... of course it is symmetrical. This is a V8 that is mounted longitudinally.
Pop the hood of an Audi A3 (transverse) or A4 (longitudinal), both of which use 4 cylinders, and you'll see? Plastic engine cover.
mercedesfan says:
02:27 PM, 12/22/11
I credit Audi for giving MB the boost to start doing the same to its engine compartments. The old M273 in my S550 is a great engine in pretty much every respect, but the engine compartment is dull. The new M278, on the other hand, has a great looking engine compartment that sweats the details. I'm glad automakers are moving back towards this and away from the sea of plastic covering everything that Toyota popularized.
church123 says:
03:50 PM, 12/22/11
That's the kind of stuff people used to just rave about in older Hondas. The crackle finish valve covers, beautifully finished aluminum castings (especially on the intake manifolds), plug wires all loomed perfectly - all on relatively inexpensive cars. Now it's plastic valve covers, plastic manifolds, plastic gingerbread engine cover plates. Sigh. At least I still have my S2000 to moon over. Kudos to Audi (and I think Ford has done a decent job on the Mustang too).
saynotogm says:
04:09 PM, 12/22/11
Yes that does look very good. Only engine I can think of that looks better is the new 5.0 Mustangs.
mcloffs says:
05:02 PM, 12/22/11
Audis have such nice-looking engines because, at least in my experience owning three of them, the hoods are up a lot for maintenance and repair. :-)
panamera4 says:
06:19 PM, 12/22/11
Gorgeous, Porsche is fairly adept with this also on their cars with front mounted engines.
firstwagon says:
06:34 PM, 12/22/11
"I doubt any car below $30k was designed to have an exciting looking engine bay, especially when most are 4 cylinders. "
Check out an old Integra. Not expensive, 4 cylinders and very nicely done. It has nothing to do with cost and everything to do with the designers caring about their work.
It's just cheaper and easier to hide everything under a plastic box.
1198sp says:
06:49 PM, 12/22/11
Why would a $100k A8L owner open the hood? How uncivilized!
eldaino2 says:
09:12 PM, 12/22/11
@sniperruff:
see churc123's and firstwagons comments.
older hondas and even newer si's and s2k's have always had nice non-plasticky engine bays.
i thought everyone new this?
yellowmiata says:
10:31 PM, 12/22/11
With the exception of the engine cover (which is a waste of everything), isn't using plastic in the engine compartment a weight savings measure? Also, given that plastic generally has a lower specific heat than metal, wouldn't it be useful on the intake side to keep temperatures down? I bring this up b/c many a poster above have harped on plastic, yet perhaps that plastic is providing the weight savings necessary for good gas mileage while still retaining desirable acceleration? Just a thought.
Kevin
heidis says:
10:37 PM, 12/22/11
Gotta get this thing up on the rack and get a look at the underbelly. Let's see if the Audi design touches go all the way around.
nefariousnigel says:
11:33 PM, 12/22/11
I like the wonderful engine design better than the ho-hum exterior.
duck87 says:
07:51 AM, 12/23/11
@church123: I really liked the K-series Type-R red valve cover... really wish that was in my '06 Si rather than the plastic valve cover. I did appreciate the cast aluminum intake- though it could be finished better.
stovt001 says:
03:05 PM, 12/23/11
Audis and Fords have the best looking engines. Everyone else just hide everything under a flat plastic slab.
bodyblue says:
03:39 PM, 12/23/11
Shhhh dont tell ZR1man but Vettes have nice looking engines as well.
brian_k says:
09:58 PM, 12/24/11
On the rare occasion when I am visiting my parents in the burns and can hand wash my '07 A8, I absolutely pop the hood to properly wipe down and dry around all body panels, grill, etc. and yes I admire my engine bay. And no I dont do my own maintenance (I realize in this site this makes me a poseur). I don't know how to change the oil on my cr, though I can on an 80s Mack truck. And BB- I am not an old fart as you previously stated.
Now let's hear about the driving characteristics since all of the previous reviews I have read here and elsewhere were sport diff and summer tire equipped A8's.
ghills says:
04:37 PM, 12/28/11
looking great!