You'll get a maximum 85kW (114hp) of power during peak stages, while its continuous power output is closer to 60kW (82hp).

ENGADGET: Audi A3 e-tron hands-on (video) Hands-on

The rules of the competition state: "The winner will be the individual, team or organisation that achieves the greatest volume of electrical output over the set minimum hurdle of 100 GWh over a continuous two year period, using only the power of the sea".

BBC: Scotland