This was a really big article in the past by Car and Driver. The car they had was the Infiniti FX50 which runs the same brakes as our Sport and Nismos. Same exact thing happened. They had a whole data chart with it as well. After about 5 stops from 100, the brakes gave up on the FX. Stopping distances went off the chart. I just signed up for 2 track events at Road America this upcoming year. I'm not too happy I have to buy all of this stuff in a car that was advertised as a sports car. I know, we've been here and done that already, but my brother's Jeep SRT8 is more track capable than my Z. It's kind of pathetic. BTW, I think Infiniti FX50 owners could go back to the dealership and get performance pads fitted for no charge. Nice, huh?