@Ben Wojdyla: True, but a Z06 and a GT-R cost about the same, just two different technologies to get you to similar performance numbers in stock form. Vette and Viper may have larger displacement, but they are also naturally aspirated.

Wow, arriving to the party late. Vette and Viper tuners (amoung others) have been in the 1,000 hsp plus market for years.