Already available as standard on the LaCrosse range, eAssist essentially adds a small electric motor that works to aid the engine during high load situations, though it can’t power the wheels directly like in a full hybrid.
The electric motor also acts as the car’s alternator-generator, topping up the batteries when needed and running ancillary features like the air-conditioner. The eAssist system also comes with a regenerative braking feature that also helps charge the batteries.
The 2013 Buick Regal range hits dealers this fall and will offer three different flavors for buyers.
Starting with the base, buyers can expect a 2.4-liter four-cylinder engine that is now fitted with eAssist. Peak output is 182 horsepower and 172 pound-feet of torque, while fuel economy checks in at 25/36 mpg city/highway. That’s a substantial improvement over the 2012 base model’s fuel economy, which came in at just 19/31 mpg city/highway.
The mid-level model features a turbocharged 2.0-liter four-cylinder engine delivering 220 horsepower and 260 pound-feet of torque.
Finally, there’s the Regal GS topping the range. It also gets a turbocharged 2.0-liter four, but with a healthier 270 horsepower and 295 pound-feet of torque on tap.
While the base Regal comes exclusively with a six-speed automatic, the mid-level model and range-topping Regal GS have the choice of six-speed manual or six-speed automatic transmissions.