Despite gasoline-powered cars still dominating US roads, Detroit auto giants have unveiled more electric vehicles (EVs) at the Detroit Auto Show, one of North America's largest auto shows, as they seek to wrest control of a growing market from Tesla and newer upstarts. Chevrolet showcases its recently-unveiled Equinox, an electric SUV with a $30,000 starting price tag which is going to "get probably a lot more mainstream America thinking about electric propulsion systems," according to Chevrolet Vice President Steve Majoros. "We're still fairly early on the EV transition in the United States," automobile analyst Jessica Caldwell tells AFP, adding that "it's growing every month." IMAGES AND SOUNDBITES