If you have time and are inclined to spend some of it looking at hand-held 8mm footage of slaloming (that's what it was called before "autocross" dropped out of the void) during the period 1965 - 1974-or-so. I can't explain many of the inconsistencies among the reels, other than to mention the camera operator was a young man with a camera, and not much of a sense of trivial history. For example, one or more of the reels shows slaloming on a medium-to-small course in a parking lot at Cubic Corp, Balboa Avenue. Within the two or three months just passed (June, 2021), new, modern, impressive buildings have filled all the empty space around there. I don't remember which reel has the Cubic stuff, and I'm not currently interested in looking it up. (looked but didn't find it) (it's around here somewhere)
(---> HERE IT IS <--- Notice all the open ground at the [south] side of the lot. Different world back then)

You might notice the ubiquity of Corvettes. They did dominate, both in performance and influence in the Rules Committees: At one moment back then, it seemed as if there was a class for each Corvette that showed up.

We’ll see how pasting this Word doc into a primitive Web Page template works.

 

Tecate event, incl Mickey Pleasant v. Don Devendorf; 04:08 MGB/GT
Scroll halfway down this page to see more about Tecate action:

May Co two Vettes. 32 seconds

May Co. slalom w/ Corvettes, Fred Puhn TF MG @ 3:10

More May Co Corvettes 3:13

GLAS Coupe, Grey MG/GT 03:54

Cobra Elva MKIV, Vettes 04:01

MGB/GT —> At May Co 04:07

More May Co., Doc Thompson v. Mickey Pleasant + blue spitfire + white Healey 100 01:58

CatTracks slalom Unk location Lots of Lotus Elan plus Mickey and Doc 3:18

Slalom Southwestern College "Try it..." 7:14

El Cajon Slalom with Lotus Elan 03:18

Cajon Speedway Maybe 8/67 slalom 02:58

Practice slalom at Bullring By The Sea 03:56

Vega wagon Ontario Motor Speedway SLALOM 00:36 Just half a minute of Mr Car-Fifty-Four-Where-Are-You? Cadenhead prepping before the event