The 2013 Buick Regal is a mid-size sedan that comes with a robust set of powertrains including a base 2.4L 182-hp four-cylinder, a 2.0L turbocharged four-cylinder delivering 220 hp, and a hybrid eAssist model that combines a 2.4L engine with an electric motor for a total of 182 hp. A six-speed automatic transmission is standard, while the turbo models offer an optional six-speed manual. The Regal offers FWD only. Trim levels include Base, Premium I, Premium II, Premium III (Turbo), and GS, all equipped with key features like full power accessories, dual-zone automatic climate control, heated front seats, and an IntelliLink infotainment system with a 7-inch touchscreen, Bluetooth, and smartphone integration. For 2013, the Buick Regal adds standard eAssist for the base model.