The brand has announced new versions of the Regal, Verano, and LaCrosse for 2016, which join the previously announced Encore Sport Touring.
These new STs, have the turbocharged EcoBoost engine, the stiffer suspension and the six-speed manual.
Buick promised that the future holds Sport Touring versions of every Buick moving forward.
The next-generation STs will better deliver on their sporting pretensions by offering more substantial tweaks, including more power.