[thompsac25]

Originally Posted by chaungo

4S is better in every way.

wear and grip in both dry and wet are probably the best in it's catagory right now.

Do not use any summer tires in temps below 7C, you'll wear it about 50% faster, and about twice as much 0C and below, you'll also crack the compound as well.

Agree 100% with this
I've had both the MPSS and MP4S on my M3. The SS is being phased out and the 4S is the successor. Which also means that the SS is slightly cheaper in price, so that is something to take into consideration as well.