I agree with Jeremy on some points. But on the other hand, things are getting excessive. Now sure technology advances and blah blah blah, but really, things are getting out of hand.
Your average basic midsize sedan has somewhere north of 200hp now. The V6 models tend to have almost 300hp now. Now if you have a luxury performance sedan with less than 400hp, its a joke. The V8 Tundra is pushing close to 400hp, and the Escalades come stuff with over 400hp. These are not enthusiast vehicles at all either! They're just your typical bland commuter cars.
I think that the exotics will continue to do what they do, since their clientele have enough money to do whatever. I hope that the more mainstream junk gets smogged and choked to hell. There's no Toyota Camry buyer that wants/needs 270hp, they want fuel economy, cheapness, and perceived value, otherwise they would have bought a better car.
Now, I do hope that they continue to make sports variants of normal cars, things like the SS lineup, SRT lineup, etc. Those are great cars. But I don't think every basic version needs all the power they're given.
Furthermore, the model bloating needs to stop. Civics are huge now. Accords are boats. Everything is huge and weighs a ton, even if its supposed to be a small efficient car.
My hope is that things like super efficient TDIs will make their way to the states and become popular. They're better than hybrids in every way, and hopefully the effects of your average commuter using less gas means enthusiasts can get gas cheaper and use more.