that having the correct tire pressure in the runflats improves performance a lot. Too low pressure causes the sidewall to "roll" in corners. Too much pressure causes a crashing ride and poor traction. But get it right (35psi cold) and all is well. Motor on!

 

I'm running at 35 now as well. I found that my tires were wearing a bit too much in the middle at the high pressure. I'm also getting better gas mileage at 35 psi, averaging around 33 non-highway vs 29