My guess would be 3-5 lbs lighter compared with rear weight. That would mean if a light weight wheel 19" or 18" about 18 lbs would improve 0-60 time, maybe as much as 1/3-1/2 sec. The reason i say that is from previous wheel and tire changes on my other cars that changed my own throttle feel from the line. That was the opposite though the car felt a little slower because of more overall weight increase. And wider tire.