I just picked up my 2008 Thundergray CTS with the premium luxury package including the 17" hand polished wheels. Question- since I did not order the Sport Package/Suspension that includes the 18" wheels, is it a problem to mount the OEM 18" wheel on this vehicle or will it throw the car off since it does not have the sport suspension and came factory with the 17's?
Thanks Joe

ttt

I want to know this too.

Dana

although my suspicion is that it would be ok to do so.

We just did this for a customer the other day, and it worked out fine. Car rides and drives perfect, and looks a lot better with the 18" wheels.

same hubs
they should bolt right on

My car came with 17" wheels which I didn't want. The dealer and I worked out a deal to have 18"wheels chromed and All Season Tires put on. No problems at all everything is great. I really like the chrome. I hope it will hold up to all the salt they use on the roads here in the winter. I try my best to keep them clean but this winter has been something else.

So the lug nuts from the 17's and tire sensors can be used on the 18" wheels?

Changing out the wheels and tires keeps the diamter the same so there is no issue.
Yes you can use the same lugs and sensors.