This somthing I have never heard of, a race in 1971 between the US F5000 cars and the GP cars of the day.
Yes it certainly happened - if I remember rightly at Brands Hatch.
MG Mark
Are you thinking of the Rothmans 50,000? That was an anything goes race, F1 F5000 F2 and sportscars, David Piper entered his 917 etc.
The race was won by Fittipaldi driving a JPS Lotus. That must of gone down well at Pall Mall, Rothmans paying £50,000 to John Player!
Two drivers, maybe better know in sportscars came in 2nd and 3rd, Redman in a McLaren and that legand Henri Pescarolo driving a Frank Wlliams run March
The race in the clip takes place in either the US or canada and looks to be a much bigger event with entrys from Ferrari etc.