What kind of performance difference in warm temperatures would I notice jumping from the stock Michelin ps4s on 20inch wheels to my winter setup which will be lighter 18inch wheels wrapped with continental dws06? I live in the bay area, but need snow capability for the occasional trip to the mountains. So the majority of the time will be in 60-70 degree weather. I'm curious if I will notice a huge loss in braking distance, and if so, in how many feet? Will it be substantial, like 50% greater braking distance? Also, what differences in max cornering force in terms of G? I figure I will gain about 1/10th a second in 0-60 acceleration, since I lose alot of unsprung rotational mass. If anybody has any information on this, that would be awesome.