Most participants in a car race
John Lamm
United States (Thunderhill Raceway Park)

The most participants in a car race was 216 cars at an event organised by John “Jay” Lamm and The 24 Hours of Lemons racing series (USA) at Thunderhills raceway park, California, USA, on the 13-14 September 2014

The race was won by the Cerveza Racing Team who completed 180 laps of the 5 mile road course during the 14.5 hour race. The participants of the event raised $5,000 for Alex’s lemonade stand foundation, a worldwide charity working to fight childhood cancer.