2015 Audi A3 TDI - #TDIChallenge - 77. 9 mpg over 252 miles - 350' ASL to 550' ASL over Cajon Pass
The 2013 Ford Focus ST isn?t just fast, it?s frugal The Focus ST?s new 2.0-liter EcoBoost? four-cylinder engine is certified at 32 MPG...
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