John and Helen Taylor, owners of 88 fuel consumption world records, are at it again.
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GM is rolling out its Shop-Click-Drive program to dealers nationwide.
General Motors will offer a natural gas Chevrolet Impala for both retail and fleet sales for the 2015 model year.
With its little 1.4-liter turbocharged four-cylinder, the Chevrolet Sonic manages 40 mpg on the highway and 29 mpg in town.