So I get asked all the time, "Hey, what's the difference between dealerships?" "What happens when a dealership has both premium and non-premium brands under the same service roof?" Well, here's a good visual representation for the only difference in service when you bring a premium (Cadillac CTS-- Top) and a non-premium (Pontiac G8 GT -- Bottom) to the same dealer (Martin Cadillac in LA). Notice the difference? That's the only one.
Mike Magrath, Vehicle Testing Assistant

sodaguy says:
03:34 PM, 07/ 3/09
On the G8's invoice, they are trying to upsell a number of services.
thedream21479 says:
12:44 AM, 07/ 4/09
the printed "recommended services" does not cover up the logo on the CTS's invoice, whereas the Pontiac people didn't care how the invoice printed out and it covered the address line.
kingkhalas says:
11:34 AM, 07/ 4/09
It doesn't even say Pontiac on the bottom one.
djm32189 says:
12:54 PM, 07/ 4/09
I don't really see a difference besides one saying Saab and the other saying Martin.
dasko says:
12:32 PM, 07/ 6/09
Now this is just a guess but it also reveals how closely I follow this blog. I know you guys went through quite the hassle with service for the G8 and I noticed the Cadillac sheet has a phone number for appointments. The Pontiac sheet does not appear to have that number listed. Would that be the difference to which you are referring?