That's news to me. I know they used to run half mile drags, many many years ago, on the back straight of Riverside Raceway (Long before my time). Wanna say late fifties, early sixties. Cars were a lot slower then.....
There weren't too many racing adventures they DIDN'T do at Riverside :lol: One of my instructors when I was an apprentice Operating Engineer raced Enduro Karts there on the big road course :steering: