Largest demolition derby

According to Official Guinness Records,

The largest ever demolition derby had 123 participants and took place at Todd & Pollock Speedway, Mount Maunganui, New Zealand, on 16 March 2002. It took 47 minutes before the winner, the last mobile car, emerged.
Although there have been larger demolition derby events, involving several races, this is the largest single race that we know of.

For a complete list of 2001 records, please visit 2001 Guinness Records in New Zealand.

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