[Perfectlap]

I have 10" rears now. Definitely over 30 pounds like most 10" wheels, there is a significant decrease in accelaration. Gas mileage has gone down too by about 5 mpg. Additionally, not sure if this has to do with the winter tires, although I didn't notice this last year, the rears have a hard time hooking up from a stop if you get on the throttle too fast or if it's wet. I don't think this car like too much weight back there.