Quote:
Originally Posted by cs4444
While the M4 may have higher quality tire, the rears on the Porsche are 12 inches wide vs 10 in the M4. So the Porsche has an extra 4 inches of contact area in the rear plus around 400lbs less mass, so its grip advantage is considerable.
Put 11 inch wide PSS on the M4, and 9.5s on the front, and its grip potential would be a closer to the porches.
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The 911 has 11" wide wheels if you order the 20" wheels, you can also order the SportTechno wheels which are 11.5". The base 911 has a 10" 285 tire, the car tested was a 20X11 with 295/30/20 tires. I agree though, with the amount of low end torque the M4 has it needs more rubber.
Dave