Just when we thought that lower gas prices and the economic downturn are going to kill the electric car, Fisker Automotive took the curtains off of the new Karma S at the Detroit Auto Show. The 50-mile range, four-seat plug-in hybrid convertible uses an aluminum spaceframe design and runs on a clean Q-DRIVE powertrain. It sends some 400hp to the rear wheels from a pair of electric motors packed in the back, while a 2.0-liter turbocharged 4-cylinder engine (260hp) generates electricity for the lithium-ion battery pack. Karma S is a sweet concept and a fresh design– which should be market ready by 2011. [via AutoBlog]