An average modern car has a drag coefficient (a measure of a vehicle’s air resistance) of 0.3. The Sunswift 7 sports a sleek 0.095.
The Sunswift can accelerate to 140km/h and last year broke a world record by travelling 1000 kilometres on a single charge.
Often the racers are using new solar technology barely tested beyond the lab – such as next-generation cheap, light perovskite film used on cars this year – which is why the CSIRO observes and helps run the race each…
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