Formula E car
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Electric Formula E car gets Donington Park outing

4 July 2014 Last updated at 01:31 BST

Cars competing in the first ever international motor racing series for electric vehicles have been running in anger for the first time.

The cars were participating in a test session at the Donington Park circuit.

The first race is due to take place on the streets of Beijing in September.

Theo Leggett went to see how the new cars look - and sound.