[1] Before the Zero Emissions Race Palmer covered 54,000 kilometers (34,000 mi) in a custom made EV called the "Solar Taxi", a small, lightweight two-seater vehicle.
The Solar Taxi could travel for 300 kilometers on a single charge and reach speeds of 90 kilometres per hour (56 mph).
[1] Passengers included UN Secretary-General Ban Ki-moon, Monaco's Prince Albert, Hollywood filmmaker James Cameron, New York Mayor Michael Bloomberg and Sweden's Prime Minister Fredrik Reinfeldt.
"People love this idea of a solar car," Palmer told the BBC outside the venue of the COP14 UN climate talks.
"The success of ZERO Race depends on the number of people reached and inspired enough to take action towards a more sustainable way of life," said Palmer.