https://www.engadget.com - More and more luxury automobile owners want to go green. Sure, there's a chance they're looking to save a few bucks on gas, but you rarely find people who buy feature-filled powerful sedans and then worry about the prices at the pump. For the automakers, some of that desire to be more eco-conscious is government-mandated. As in the growing Chinese market, where hybrids and EVs will soon be the norm as the country tackles its pollution problem.The CT6 Plug-In is built in that country to capture that market. But it's also here in the US and it's a worth a look.