Now, I am fully aware that this car is an exception, but the Ultimate Aero TT has a 387ci twin turbo V8 making 1287hp/1112tq while still maintaining nearly 30mpg.....just sayin...

Also, slap a TT kit on a C6 Z06 and I'm sure you would be knocking on the door of 1000hp while getting solidly over 25mph on the highway.