I'm looking at a set of Team Dynamic Pro race 1.2 wheels: 8.0 x 18 e11 - 45 and/or 9.0 x18 e15 - 35 but I wasn't sure what would be the best backspacing for an 07 335i w/ ZSP. My other question is about how the car is staggered in OEM form, 225 up front and 255 in the rear. Do you recommend staying staggered or squaring the car up for autocrossing and the eventual move to more hpde's? I was thinking about getting some 265/35's on 18x9's in the rear and some 235/45's for the 18x8's in the front but I just was not sure. I am coming from autocrossing a momentum car (SVT Focus) so my driving style is geared towards that type car. Any recommendations on what I should do differently with the 335i?