Attempting to set a new record for running up the Goodwood hill climb in reverse, the specially adapted Nissan Leaf was not allowed to run as officials deemed it unsafe due to a lack of testing.

It's not everyday that you get to see a car traveling backwards at 90 mph (145 km/h). That's exactly the thrill Nissan wanted to give spectators at the Goodwood festival of speed this past weekend but were denied the opportunity just prior to the event.

Attempting to set a new record for running up the Goodwood hill climb in reverse, the specially adapted Nissan Leaf was not allowed to run as officials deemed it unsafe due to a lack of testing.

Naturally disappointed with the decision, Nissan promissed to return to the UK hill climb event next year. A Nissan spokes person said, "We still want to break records with the LEAF.

"The fact it can travel at speeds up to 90mph backwards is too good an opportunity not to exploit."

"Unlike petrol-powered cars, in which reverse gear allows only low speeds, the Leaf has an electric powertrain that, theoretically, enables it to be driven backwards as fast as it can go forwards."

Despite the setback, Nissan was able to carry out their second speed record attempt by driving a Nissan Juke up the hill on just two wheels.

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Nissan Leaf denied backwards hill climb attempt at Goodwood