I don't think we have too much to worry about with the Mazda RX-8, since Mazda recently admitted that it really only makes 198 hp (oops!). As for the Z and the G35, they definitely win on straight-line acceleration, but I believe the Crossfire still wins on handling and braking. The SRT-6 will make minced meat out of everybody, including my Crossfire! I guess I'll take the Road & Track cop-out and say my Crossfire "just feels better!"