Chassis, maybe. Engine? Nah. If you want 500+hp out of an RX7 or a Porsche 944, 928, or an older 911, you're going to pay through the nose for it. NO ONE can dismiss the huge aftermarket of Chevy and Ford V8's. It's hard to say too many bad things about the C5 chassis, though. I mean, come on, it's pretty darn good.
Can't wait for the new Lotus Elise, though. Com>