I finally got the car out Saturday for a good drive and you are right Frtiz, the softer springs lets the rear squat to transfer some weight to the back for better traction. The 285/35's being an inch taller and a little wider helps too. I took my younger brother for a ride and as we pulled out of his drive it's a very short distance to a stop sign, (probably around a half of a city block or less) I nailed it and it bit hold of the road good. We went from 0 to 50 and stopped at the sign, he couldn't believe it he said "man you need to take this thing to the track".