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At the 2015 Geneva Motor Show Audi presented the second generation of its high-performance R8 sports car. The latest evolutionary version of the electrically-powered high-performance R8 e-tron sports car achieves a performance figure of 340 kW and a torque of 920 Nm (678.6 lb-ft). It sprints from a standstill to 100 km/h (62.1 mph) in 3.9 seconds. Thanks to new battery cells, the range could be more than doubled compared to the first version of this technological wonder – it is now more than 450 kilometers (279.6 mi).
The large T-shaped battery is structurally integrated into the center tunnel and behind the occupant cell – optimally positioned in the car. It supports the dynamics of the R8 e-tron with its low center of gravity. Audi produces the high-voltage battery itself, for the first time based on a newly developed lithium-ion technology which was specially conceived for a purely electric vehicle drive. In comparison to the first technology platform, the battery capacity has grown from 49 kWh to approximately 92 kWh. This progress was possible without changing the package.
The R8 e-tron achieves an electric range of 450 kilometers (279.6 mi) instead of a previous 215 kilometers (133.6 mi) with an energy density that has been increased from 84 Wh/kg to 154 Wh/kg and some other modifications to the car. The electrically powered high-performance sports car has the Combined Charging System (CCS) on board, which allows charging with direct and alternating current. Using this system, it is possible to fully charge the battery in significantly less than two hours.
The power is now twice 170 kW and the maximum torque twice 460 Nm (339.3 lb-ft). The R8 e-tron accelerates from 0 to 100 km/h (62.1 mph) in 3.9 seconds on its way to an electronically restricted top speed of 210 km/h (130.5 mph) or 250 km/h (155.3 mph). Intelligent energy management and an electromechanical brake system enable high energy recuperation rates. Targeted torque vectoring – needs-based distribution of power transmission between the rear wheels – ensures maximum stability and dynamism.
Audi uses the electrical high-performance sports car primarily as a mobile high-tech laboratory. Accordingly, the findings from the R8 e-tron help in creating a vehicle with a sedan character. Upon customer request, the R8 e-tron will be available for order in 2015 as an electrically powered sports car in supreme hand-built quality.
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