Oshawa, Ontario – Buick will add eAssist to the Regal for 2012, improving fuel efficiency by up to 24 per cent over the conventional four-cylinder engine with six-speed automatic. The 2012 model will also mark the start of Regal production at GM’s plant in Oshawa, Ontario.

The eAssist model will deliver estimated fuel consumption of 8.0 L/100 km in the city and 5.4 L/100 on the highway. The system will also be offered on the 2012 LaCrosse.

“The award-winning Buick Regal is proof that this company’s capabilities on the car side of the business, and the addition of the Regal with eAssist, shows just how serious we are about offering consumers a range of sophisticated powertrain options from ‘green’ to mean,” said Kevin Williams, president and managing director of General Motors of Canada. “Integrating such advanced fuel-saving technology into our Oshawa Assembly Plant is a natural fit, given the plant’s flexible manufacturing system and its longstanding quality leadership, and we’re proud to lead the way in terms of ‘green’ technology production in Canada.”

The eAssist system uses a lithium-ion battery and electric motor-generator to provide electrification to deliver regenerative braking, engine stop/start and electric boost capability. The system delivers hybrid-like fuel efficiency with excellent ride quality, handling performance and interior quietness, while costing thousands less than competitors with similar technologies, the company said.

The Regal with eAssist goes on sale this fall, alongside the 2.4-litre and 2.0-litre turbo models, as well as the upcoming Regal GS.

Connect with Autos.ca