Just like the Lacrosse, the Buick Regal will no longer be available with a base 2.4L 4-cylinder engine. Instead, the same 2.4L with Buick’s eAssist mild hybrid will become the standard powerplant.
The Regal eAssist will get as much as 36 highway MPG, though pricing and city fuel economy wasn’t announced. The base 2.0L turbocharged engine will still be around, as well as the Regal GS, which gets an automatic gearbox option for 2013. Some outlets have suggested that the turbocharged engine may be offered as a no-cost option, similar to how the Lacrosse offers a V6 as a no-cost alternative to the eAssist. Current pricing shows a nearly $3,000 gap between a base 2.4L and a base model turbo, so that idea seems like a flight of fancy, unless the lineup is re-arranged.