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Mercedes-Benz Reveals Electric SLS AMG

Posted by autotran on July 17, 2009

The Mercedes-Benz SLS AMG is an exotic gull-wing supercar, still in the testing stage, that

  • packs a 6.3-liter
  • V-8 engine
  • capable of 570 horsepower
  • and consuming some gas, one assumes

Hardly en vogue these days, and that might explain the development of an electric version of the supercar, the SLS AMG with electric drive.

The Mercedes-Benz SLS AMG, introduced this year, is powered by a 6.3-liter V-8 engine, but the company is also envisioning an electric version for the future.

The Mercedes-Benz SLS AMG, introduced this year, is powered by a 6.3-liter V-8 engine, but the company is also envisioning an electric version for the future.

On Thursday, Mercedes issued its 1st news release on its electric SLS AMG, which will be unveiled to the press at the Frankfurt Motor Show in September.

Unlike the electric Tesla Roadster, which is powered by an electric motor at the rear axle, the SLS AMG has 4 electric motors placed near the wheels. Mercedes said the motors aren’t in the wheel hubs, as found in many electric-car concepts. One of the criticisms of in-hub electric motors is the increase in unsprung weight, which encumbers car handling and driving dynamics.

Nevertheless, the SLS AMG electric would be all-wheel drive. The peak output, according to Mercedes, is 392 kW (or the equivalent of 525 horsepower). The protoytpe car (and there is a running prototype, according to Rob Moran, a Mercedes spokesman) uses a 400-volt lithium-ion battery with 48 kWh of energy content. The battery is liquid-cooled and can be recharged under braking.

Mercedes says that acceleration from 0 to 62 miles an hour takes around four seconds, which is similar to the Tesla Roadster (and the gas-engine SLS AMG).

The electric version of the SLS AMG has all the benefits of an electric-car layout (i.e., not having a heavy lump of an engine in the front of the car): low center of gravity, balanced weight distribution.

A diagram of the electric Mercedes-Benz SLS AMG.

A diagram of the electric Mercedes-Benz SLS AMG.

Daimler has made several moves recently to show that it is paying more than lip service to its claim that it is exploring alternative energy. In May, Daimler bought a stake in Telsa Motors. At the time, a Daimler board member, Thomas Weber, said “the guys from California also showed us that sporty cars” could be a good target.

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