I've just found out that the first F1 Safety Cat was an orage Porsche 914 in 1973 Canadian Grand Prix.
I wonder if there's a list of F1 safety cars for all years. I've done some googling and couldn't find much more than that picture
(just curious )
I'm especially interested about the pre-Merc era. Oh and I also recall there was an Acura SC deployed in Montreal last year when they had to resort to using a reserve SC for some reason.