2018 Buick Regal GS debuts with more power and room

The all-new Buick Regal GS sport sedan will offer its first V6 engine in a generation, all-wheel drive, a nine-speed automatic transmission and a more accommodating interior when it goes on sale early in 2018.

The new GS accelerated smoothly, absorbing bumps and clinging to curves in test runs around a 5.3-mile ride and handling track at General Motors’ Milford proving ground northwest of Detroit Wednesday. The 3.6-liter V6 delivers 310 hp. All-wheel drive (AWD) and a nine-speed automatic transmission are standard on the Regal GS.