Originally Posted by acx
color me shocked that a vette at what 7-800 pound slights is rated for more mpg...
let's talk apples to kiwi fruit lmfao..
either way I managed 25mpg in my challenger driving leisurely on a recent highway trip of about 100 miles.
True, its a bad comparison but MPG is based on the vehicle the motor is placed in and there is no other chassis that runs the LS3 ... yet. The G8 GXP should make for a nice comparison when it hits the road.