Just picked up My DB Touring last Friday and now am looking into changing out the wheels and tires. I was thinking of running 245/40/18 on 18x8.5 on the front and and 275/35/18 on 18 by 9.5 on the rear. I was just wondering if this would have any negative implications on the TCS or the steering of the car. Thanks for all your help.

BTW I love my Z!!!

 

the fronts you list are fine...

you really need 275/40-18 on the rear to maintain correct rolling diameter

 

ZZZ I agree those 275-40's would look alot better

 

275/40/18s would not only look a lot better, they will work a lot better. They will maintain the correct stagger, they are the correct size tire for your application.

BTW, the proper offsets for those size wheels is something like +25mm front and +30 mm rear.

Good Luck, and glad you love your Z!!!

Lou