ZERO-SUM GAME.

A further disappointment is that we couldn't get a Plaid with the $20,000 Track package that offers upgraded wheels, tires, and carbon-ceramic brake rotors; our test car was on the base 19-inch Pirelli P Zero PZ4s. Comparing the results from the '98 test also affirms other trends: Cars are vastly more powerful today, and tire and brake technology has improved a lot. CHEVROLET CORVETTE Z06 22.5 SECONDS The Z06 is a road-course car, not a drag racer. Despite active aerodynamics that switch to a low-down-force mode when the GT3 is pointing straight and accelerating, the Porsche was slower to 150 mph than both the GT Speed and the Blackwing - which, we know, is a ridiculous thing to point out about a car that is, after all, powered by a naturally aspirated six-cylinder. [Extracted from the article]