General Motors gives a glimpse at the potential of electric propulsion in the form of luxury transportation, with the Cadillac Converj Concept. The four-passenger Converj extended-range electric vehicle (E-REV) has an aggressive, forward-leaning arc profile, and revolutionary electric propulsion technology called Voltec. Voltec system is made up of a 16-kWh, T-shaped battery, an electric drive unit, and a four-cylinder engine-generator, which enables up to 40 miles of gas, and emissions-free electric driving with extended-range capability of hundreds of miles. An all-glass roof incorporates solar panels that help offset power drain from the vehicle’s accessories. Other design cues include a full under-vehicle cover (belly pan), low-profile rearview cameras that replace conventional outside mirrors, and vertical headlamp and taillights elements, with light pipe technology.