How concerned are you about tire availability? Much like the stock 17" size is almost extinct. There's not much selection in the some other other presented here. Tirerack shows only 5 choices for the 285/40. 2 are in close out, one is limited quantities. Other is over 400 bucks a tire.
If you stick with stock size equivalent, 255/45, you have over 50 tire choices.
The 275/40 though a tad shorter are the next most popular with 33 choices.
Might be worth considering depending on how much you drive it and for how long you will keep the car.
Last edited by 91ss; 01-11-2017 at 07:06 AM.