A great concept announced at this year’s NAIAS in Detroit, Cadillac Converj is one of those green coupes that will make it into production in the next few years. And although we know most of the details, the Converj is going to feature a 16 kW lithium ion battery that will propel it for 40 miles and a 1.4 liter four cylinder engine to recharge whenever needed. Although for now General Motors is not ready to tell that it has a green light, our sources reported that in 2012 we’d be able to get behind the wheel for a “clean” drive.