Quote:
Originally Posted by DrkPhx
I alluded to it in my previous post. It has 3.31 rear gears (M6 ZL1 has 3.73) Ford changed the transmission gearing in the 13-14 GT500 to help with mpg (and hit 202 mph) to avoid the GG.
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Right, but that's not really a big enough difference to account for being down 4 mpg on the highway. Not when the ZL1 is a newer more modern engine, has variable valve timing, and better aerodynamics.