Buick will drop the conventionally-powered I-4 version of its Regal model, making the “mild” hybrid eAssist the standard powertrain for the compact sedan starting in 2013.
That’s the same strategy that the maker has taken with the midsize Buick LaCrosse. In the smaller Regal, the gas-electric driveline delivers as much as 36 mpg on the highway, according to the EPA.
Meanwhile, the mid-luxury General Motors brand has announced it will introduce a new automatic gearbox for the sporty, turbocharged version of the compact sedan, the Regal GS. Until now, it has only been available with a six-speed stick, a sales-limiting factor in today’s U.S. market.