[Rickk]

Traction on, VDIM on and always stay in sport mode. It will require alot of practice to manually shift this car and get to 60 faster than in auto mode. When mastered I believe you can get the best 0-60 time when using either the paddles or shift lever to shift through the gears. I have upgraded to 275/30/19 tires in the rear and this has helped with wheel spin immensely. With traction off I have been left at the light spinning in smoke on more than one occasion.

 

[Rickk]

The rears are PS2 275/30/19. These fit no problem as the stock rim is a 9" in the rear and a 8" up front. I have not worn out the front tires yet but have done alot of researching on what size would be best. I am leaning towards a 245/40/19 and here is why. The stock tire is a 225/40/19 this tire and rim have an overall dia of 26.08 a sidewall height of 3.54 and a section width of 8.85. As you have noticed, the gap between the tire and fender in the front is much greater than in the rear. I personally dislike the gap. I do not want to make any mod's to the stock suspension. I therefore and opting for a 245/40/19 PS2 up front as this will have a slightly larger overall dia which will fill some of the gap and provide a larger section width giving the car a larger front tire contact patch.

 

[Rickk]

My research included looking at some of the most exotic high performance cars of the day. Currently the percentage of difference with what I am doing is approx 4.57% The wheel and tire setup on the 2008 Ferrari 599 GTB Fiorano is 5.81% and this hits a top speed of over 200 MPH. You asked and I answered. Given the way I drive the car and consulting with all my coherts this will not cause me or the vehicle any undo stress and or premature brake or tire wear. You are correct that the original staggered set up was pretty close to even in the overall DIA of each other.

 

[Rickk]

I completely understand and have looked into it further. I am currently running the 275/30/19 in the rear and the stock 225/40/19 up front. Without having any before and after track experience I do not feel any difference. I have since played with different options and will probably go with a 245/35/19 up front which will match much closer in overall dia than the 245/40/19. The stock setup has the fronts just a smidge larger than the rears. Was this for a reason? I am hoping the gap betweeen the front tire and fender does not grow. Thanks for the insight.

RWK