Was this highway uphill the entire way or something? I've done the 80+ mph bit before, and pulled off 35 mpg (w/ AC off though). Though I guess I can see 90mph running that down more.

Based on your driving preferences, though, it looks like you're looking for a performance car, and fuel efficiency isn't exactly at the top of your priority list. If you're really looking for a hybrid, the Accord would probably fit on your game a little better.