[simianspeedster]

What's up Mikal?

Could you please elaborate on your comment about 17s helping with gearing and making the car feel quicker?

I recognize that a lighter wheel/tire combo will reduce the effort required to get rolling and the reduced unsprung mass has many benefits, but I'm not clear how wheel size affects gearing and quickness.

Assuming a constant tire diameter and combined wheel/tire weight, is there some other performance advantage to 17" rims that I'm missing?

Regarding the suspension, I'm planning to order the "factory" Performance Suspension (which I understand is installed at the port) because I want to keep it simple and keep BMW on the hook for everything.