Q45tech wrote:Wheel/tire weight on a 4300 pound car is relatively insignificant [in the normal +- 10 lb range] in changing acceleration.......now handling and braking is another matter.
Adding 10 pounds per wheel/tire [x4] would be less than 1%.
Careful about going to light weight light duty wheels most are not designed to handle the Q weight and G forces that bumps can create ........they bend and deform unlike oem wheels.
You're supposed to check your wheels every season for cracks, bends, etc. and typically if you can afford it replace them every 2 seasons as small fractures can occure in the wheel itself. X-rays can reveal impurfections.