General Motors is bringing back an old Buick name in a new package with the 2011 Regal sedan that was revealed to potential customers in Los Angeles on Thursday. The Regal is actually an Opel Insignia with a Buick waterfall-style grille and matching badges. In fact, it will be built alongside the Insignia at the GM Opel plant in Russelsheim, Germany. Power will come from GM's direct-injected 2.4-liter four-cylinder that makes 182 hp, and a 2.0-liter turbocharged and direct-injected four-cylinder with 220 hp. U.S. sales will start next spring. Follow the jump to watch the first official videos of the Regal that include detailed shots of the interior and exterior as well as driving footage.