Images that are claimed to be of an Audi electric SUV concept that will debut at the Frankfurt motor show have been published online.

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The computer renderings seen here were published by both Auto Bild and Auto Motor und Sport, and are said to come from a source within Audi.

According to Autocar, Frankfurt motor show concept car seen here is referred to internally as C-BEV and previews the look of the upcoming Q6 "coupe" SUV.

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At the Audi's annual press conference earlier this year, Ulrich Hackenberg, Audi’s technical development chief, said that the luxury marque is planning to release a new “battery powered sports activity vehicle” in early 2018 with a “range of more than 500 kilometres”.

The new electric SUV's drivetrain is said to be based on the second-generation R8 e-tron. The build-to-order coupe features two electric motors powering the rear wheels. With a total output of 340kW of power and 920Nm of torque, the R8 e-tron is said to have a 0-100km/h time of 3.9 seconds and an electronically limited top speed of 210km/h or 250km/h depending on the tyres fitted.

A 92kWh T-shaped lithium-ion battery pack runs down the middle of the electric R8 and provides a claimed 450km of range. With the aid of a fast charger, the R8 e-tron can be fully recharged in under two hours.

When Audi's electric SUV goes on sale, it will do battle with the Tesla Model X crossover, which is expected to go on sale in the US later this year.