It rides on GM's N-body platform shared with the Oldsmobile Cutlass and Chevy Malibu ... The base Grand Am SE has a 2.4-liter twin-cam four-cylinder engine with 150 horsepower.

the Malibu is much sleeker than the boxy sedan it replaced. A new 1.5-liter turbocharged four-cylinder engine became the base engine, improving fuel economy to 29 mpg overall. A 2.0-liter turbo ...