Originally Posted by ragingclue
GM has proven that you can have a high displacement, relatively high horsepower engine and not be a gas guzzler. The tech is out there.
Ya BMW has already figured that out, which is why they are going FI on most of their cars.
335 for example, 300 hp stock- 28 mpg's highway 18 city
Tune it, 400hp- 26-28 mpgs...
I am basing these numbers off of my own car, and it has awd.