Ahead of next year's challenge, the team are planning to upgrade the engine in their energy-efficient vehicle.

BBC: Car built by Wiltshire pupils clocks 2,000 mpg

Kingdown School in Warminster took first place in the schools race to find the most energy-efficient vehicle at Mallory Park track, near Leicester.

BBC: Car built by Wiltshire pupils clocks 2,000 mpg

Google also supports plug-in hybrid vehicle technology and is part of a consortium of tech companies that advocates energy-efficient computers and servers.

FORBES: Google Goes Green