The all-new Impala flaunts a nicely designed and very contemporary body style as well as an extremely well-executed dashboard. Based on the Buick LaCrosse and Cadillac XTS platform, it comes with a flock of engine combinations. The base Impala has the four-cylinder 2.4L Ecotec but it is possible to order the 2.4L eAssist, a soft hybrid, or the 3.6L V6. All engines use the six-speed automatic transmission.