Audi e Tron concept with 4500Nm of torque
Audi presents the highlight of the IAA 2009: the e-tron, a high-performance sports car with a purely electric drive system. Four motors two each at the front and rear axles drive the wheels, making the concept car a true quattro. Producing 230 kW (313 hp) and 4,500 Nm (3,319.03 lb-ft) of torque, the two-seater accelerates from 0 to 100 km/h (0 62.14 mph) in 4.8 seconds, and from 60 to 120 km/h (37.28 74.56 mph) in 4.1 seconds. The lithium-ion battery provides a truly useable energy content of 42.4 kilowatt hours to enable a range of approximately 248 kilometers.
Audi e-tron Spyder, the study of an open sports car, at the fall 2010's largest auto show. The show car, with plug-in hybrid drive, is 4.06 meters (13.32 ft) long, 1.81 meters (5.94 ft) wide and only 1.11 meters (3.64 ft) high. The two-seater is equipped with a 221-kW (300-hp) twin-turbo V6 TDI at the rear axle and two electric motors producing a total of 64 kW at the front axle.
The Audi e-tron Spyder's low total weight of only around 1,450 kilograms (3,196.70 lb) combined with the high-torque TDI and the two electric motors results in respectable performance. The car accelerates to 100 km/h (62.14 mph) in just 4.4 seconds, and top speed is electronically governed at 250 km/h (155.34 mph).
The e-tron Spyder can combine the powerful torque of its TDI -- the diesel engine generates 650 Nm (479.42 lb-ft) and the total of 352 Nm (259.62 lb-ft) of its two electric motors during acceleration in a process known as "boosting."
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