dirt road go carting at the 1960 International Grand Prix De Tecate, A 100 Mile Endurance Event... which is a 100 laps of a one mile city street route. Probably a LOT of fun. (I've been to Tecate, it's so much nicer and quieter than TiJuana)

https://www.jalopyjournal.com/forum/threads/eric-rickman-photos-for-hot-rod.1171038/page-2#post-13311209

see the article on it at https://www.ebay.com/itm/302497904370