The Mazda Miata has become shorthand for the modern roadster, yet Pontiac quietly built a rival that could outrun it and ...
HEMI crate engines available for under $4,000 include remanufactured 5.7-liter HEMI long blocks and refurbed 5.7-liter ...
Under the skin, the Karma had a 2.0-liter Ecotec engine paired to a mild-hybrid system that yielded 52 miles per gallon.