For 2013, the Regal line packaging is simplified slightly, with the 2.4-liter eAssist mild hybrid 4-cylinder becoming the base engine. Buick's IntelliLink smart-phone integration system is now standard on all Regals. A few new paint colors join the palette, though color choices on the GS remain limited.
Two new variants join the 2012 Buick Regal sedan lineup. First is the Regal eAssist hybrid that uses a small electric motor attached to a lithium-ion battery pack to assist the 2.4-liter gasoline engine. The second addition is the stellar opposite of the hybrid, taking the form of a 270-horsepower sport sedan dubbed the Buick Regal GS (Grand Sport). Other changes of note include E85 capability on the 2.4-liter engine and the addition of Buick's IntelliLink Bluetooth-enabled infotainment system (late availability) to all Regal models.
Buick characterizes its 2014 Regal as a "dynamic midsize sedan," and compares it to the Acura TL, Audi A4 and Volkswagen CC. Thanks to a new all-wheel drive option, more power from the standard 2.0-liter turbocharged engine, and revised suspension tuning, those comparisons are more credible for 2014. Riding a solid platform from Opel (GM's European subsidiary), the updated Regal has a distinct import character in its feel and road manners, particularly in the sporty GS. For 2014, the Regal comes in three models (base, standard and GS), the first two of which offer three trim levels. The base Regal engine is a 182-horsepower eAssist mild hybrid, whereas the standard and GS operate with 259 horsepower from a new version of its 2.0-liter 4-cylinder turbo.