Hyundai Just Developed a Soapbox Ride You Can Build Yourself, Soap Box - valleyresorts.co.uk
2000 Cosworth carbon fiber downhill 'soapbox' racer designed and built by a Cosworth team, piloted by Barry Sheene in the first ever Goodwood soapbox challenge in 2000. : r/WeirdWheels
Luxury British Soapbox Racers : Aston Martin soapbox racer
Soap box car hi-res stock photography and images - Alamy