Sports car are just the thing to make hybrid technology go mainstream. As pioneering players in the emerging field, Tesla and Fisker are leading the way, but there is a new kid on the block. North Carolina based, Hybrid Technologies, have announced a lithium-ion powered hybrid supercar that will hopefully achieve a range of 150 to 180 miles for the electric-powered model, and while a lithium-ion gas-electric hybrid will be expected to hit at least 220mpg. That's a staggering range compared to the Fisker Karma that does 50 miles on electric-power alone. As R&D continues Hybrid Technologies will be entered into the Automotive X-Prize with the unnamed vehicle and says that a working prototype will be revealed in September.