A production version of the new Cadillac ELR will be unveiled at the 2013 Detroit Motor Show. Basically a coupe version of Chevy Volt, the ELR is dubbed an “extended-range electric luxury coupe”. Visually, the car will be similar to the Cadillac Convrej Concept, which is good news, because to be honest the Volt is not exactly a looker. No details on the car’s power output or range have been revealed yet.