The 2014 Cadillac ELR was revealed at the Detroit auto show. Built on the same platform as the Chevrolet Volt, the ELR runs an extended-range electric powertrain, including a 16.5-kilowatt-hour lithium-ion battery pack that offers a pure electric range of about 35 miles. Take a detailed walkaround with Autoweek road test editor Jonathan Wong as he points out some key features of the Cadillac ELR on the stand of the 2013 Detroit auto show. Read more: http://www.autoweek.com/article/20130....