For many people, General Motor's decision to keep the Buick brand afloat was a head-scratcher. Promising great new products that would appeal to younger buyers, Buick's most recent wares have been respectable, but nothing eye-opening. To be truly worth mentioning, I thought Buick would have to do something so un-Buick that buyers would have no choice but to take notice. Last year's Regal GS show car was promising, and when the announcement came a few months later that it would be rolling on public roads, my curiosity was piqued. Would Buick actually offer something performance oriented?Today, the proof is in the iron, steel, and rubber. The 2012 Regal GS is clearly designed for the young and the young at heart. Peep these stats: 255-horsepower, 295 pound-feet of torque, 2.0-liter turbo 4, 6-speed MANUAL transmission (optional 6-speed auto on the way), front-wheel drive with GM's High Performance Strut suspension (to quell torque steer), Brembo brakes, 19" wheels. Funny, this doesn't sound like grandpa's Buick.