With Power Electronics Module (PEM), Most of the subsystems in the Tesla Roadster are completely electronic and under direct software control. But unlike all other cars, these systems are not a hodge-podge of independent systems — instead, they are designed as an integrated system, the way complex network and computer systems are designed today.
Tesla Roadster car will be able to travel 245 miles (394 km) on a single charge of its lithium-ion battery system. The Roadster's efficiency is reported as 133 Wh/km (4.7 mi/kWh) or equivalent to 135 mpg (1.74 l/100 km).
Here some Tesla Roadster supercars images for wallpaper : (click for larger images)
