GM unveiled the strikingly beautiful Cadillac Converj at the Detroit Auto Show in January. The incredibly sleek car uses the same 40 mile AER Voltec propulsion system as the Volt though it is tweaked for higher performance that models indicate it could achieve.Bob Lutz told GM-Volt.com at the time that he wanted the car to be produced and even acknowledged that the clay models had been built and that its design had the necessary aerodynamics to achieve the 40 mile range. He also noted the car would cost "about two Volts".According to MotorTrend, GM has approved moving the car into production. Also the report cites unidentified GM sources as saying that GM also has approved an as yet unseen 7-seat people-mover/crossover as the third Voltec car, most likely under the Buick brand.The Converj is to be launched in 2011 as a 2012 model and will remain a 2-door coupe.The Buick is likely to be based on the Chevy Orlando which shares the same compact Delta platform as the Volt. It is a compact yet spacious vehilce that can either haul cargo or easily seat 7, and could likely readily be adapted to the Voltec drivetrain.In fitting with this, there have also been recent reports that GM will be unveiling a Buick version similar to the Orlando at the Shanghai auto show on April 20th. Perhaps that will be the new Voltec machine.Spokespeople for GM have not confirmed these assertions and for now they remain rumors.Source ( MotorTrend