I was there in 1986 as I was so proud that Brum had managed to pull it off. So I got a place in the main grandstand, settled back and ... got drenched.
Every now and then something grey flew past in the spray. I guess it was a racing car but I couldn't be sure.
What a miserable experience after all that effort.
I kept going year after year and it was, of course, excellent after that. My old college, Matthew Boulton, had a great view.