2010 Audi E-Tron Spyder Concept

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The Audi e-tron Spyder's low total weight of only around 3,196 lbs combined with the high-torque TDI and the two electric motors results in respectable performance. The car accelerates to 60 mph in just 4.2 seconds, and top speed is electronically governed at 155 mph.

The e-tron Spyder can combine the powerful torque of its TDI - the diesel engine generates 479 lb-ft and the total of 259 lb-ft of its two electric motors during acceleration in a process known as "boosting."

The intelligent distribution of power allows for optimal dynamics in every situation. The targeted application of power to the front wheels improves longitudinal dynamics while also improving lateral dynamics when cornering. This is because torque vectoring - the as-needed distribution of torque between the left and right wheels of the two axles - enables an exhilarating degree of driving precision and excellent agility.

Thanks also to its low weight, short wheelbase and perfect 50:50 weight distribution for dynamic handling, the Audi e-tron Spyder has all the drivability of a go-kart - good on bends and neutral right up to the very high handling limit.

The combination of a highly efficient TDI and electric drive also provides for excellent fuel economy and amazingly low emissions. The Audi e-tron Spyder requires on average just 2.2l diesel/100 km (106.92 US mpg), corresponding to CO2 emissions of 59 g/km (94.95 g/mile). A range of more than 600 miles is possible with the 50-liter (13.21 US gallons) tank.

The open sports car can also drive strictly on electric power and thus with zero emissions over distances of up to 31 miles, such as in urban areas. The top speed of 37 mph is just fine for normal driving.

Audi E-Tron Spyder Concept: Review (2/2)