The Tesla Roadster is a fully electric sports car, and is the first car produced by electric car firm Tesla Motors. The car can travel 225 mi (362 km) on a single charge of its lithium-ion battery pack and accelerate from 0-60 mph (97 km/h) in 3.9 seconds with the development transmission. The Roadster's efficiency is reported as 133 W·h/km (4.7 mi/kW·h), equivalent to 135 mpg–U.S. (1.74 L/100 km / 162.1 mpg–imp)
