New for 2007, the Sky is a two-door two-passenger convertible that’s offered in the base model with a 2.4-liter four-cylinder engine that produces 177 horsepower, or the Redline that features a 2.0-liter turbocharged four-cylinder pumping out 260 horsepower. Both models are offered with a five-speed manual transmission as standard, or with an optional five-speed automatic.