Wikipedia
Sevenstock
Sevenstock is known as the largest annual gathering of Mazda rotary enthusiasts in the world. Attracting visitors from all over the globe to Southern California. The event is now held on-site at Mazda's corporate headquarters in Irvine, California. Highlights of the event include the display of many historic Mazda race cars and road going models, various notable guest speakers, free car show, raffle and evening banquet. The event is coordinated by members of the Southern California RX Club.