The Infineon Raceway in Sonoma said the participants Tuesday beat the 2010 record of 57 cars performing simultaneous doughnuts in Queensland, Australia, and evidence has been submitted to Guinness to make the new record official.
The cars spun in small circles for more than 15 seconds in front of more than 200 spectators.
"That was a blast. With all the smoke and all the cars doing donuts simultaneously; I've never seen anything as big as that," said Calvin Wan, a professional drifter from San Francisco. "That was just a great time."