my main source are results and a few texts in French, I can't tell too
much so far; the rules are a liberal version of Group 1 or A, with a
power/weight copensation. The cars have front and (a little crude) rear
spoilers. The races attracted large fields and were generally pretty
close. Champion was Metge in the TWR-prepared Rover 3500, winning three
races outright, while third-place man Snobeck won 4!
There were two classes, under- and over 2500 cc, but the cars were quite equally matched as can be seen by Snobeck, a 2500 cc car which won more races outright than any other.
Further, there seem to have been a sort of "challenge", perhaps for the non-qualifiers?