Indeed it is Imola 1982, with my previous question. Well done to both Jocke1 & Mario. Here’s the answer in full;
“A bizarre tyre situation ensnared the ATS team. They were running on Avon tyres and Avon withdrew. On the Friday they used tyres from Long Beach, which were too soft to be effective. The team boss, Gunther Schmid, cast round and on Saturday his two cars emerged with Avons (cross-piles) on the front and Pirelli (radial) on the back. Manfred Winkelhock – like Henton, built for Wakefield Trinity rather than Imola – qualified his ATS on the second last row (with Henton), leaving the final row to young Paletti’s Osella and Salazar in the other ATS.”
Source: 1982, The inside story of the sensational Grand Prix season by Christopher Hilton.
mario wrote:So it must be San Marino then, given that the limited entry list made qualifying a formality. I'm surprised that it would have occurred so recently in history though - I would have thought that, by then, the regulations would have required the tyres to form part of the same set rather than permitting mixing and matching (given how rampant cheating was at the time, you'd assume some controls like that might have been brought in around that time).
I think all of the in fighting in F1 at the time between FISA & FOCA (which according to Wikipedia started in 1979), meant that FISA’s focus was shifted away from introducing new regulations to stop teams cheating or exploiting loopholes like this one with the tyres. So the teams were well ahead of the rule makers in terms of identifying potential areas to cheat in or potential loopholes to exploit. Hence the reason pretty much the entire grid were either cheating or abusing the rules in the early 80’s. And quite possibly the races prior to the 1982 San Marino GP, was the peak of it all.
Also I wonder whether or not the people at FISA at the time (Balestre and his chums), were actually capable of maintaining that ‘step ahead’ any rule bending teams. Even in ideal circumstances? Instead they always seemed to react to things, rather than being pro-actively about things.
As an interesting aside to this, in regards to Piquet and Rosberg DSQ from the 1982 Brazilian GP (which happened just prior to Imola & is an example of what I mean above because in effect FISA closed off a loophole in the regulations retrospectively and with no consultation). Apparently Watson’s Mclaren (who was gifted 2nd at Rio) had been as innocent or as guilty as Piquet’s Brabham and Rosberg’s Williams but nobody protested it…
Nuppiz wrote:I do remember that when the 1982 Swiss GP was rebroadcast here a few years ago, the commentators mentioned Keke Rosberg using a mixed set of soft and hard tyres in his car due to the unique nature of the Dijon-Prenois track. But I'm not sure when it was ruled that all four tyres on a car have to be of the same compound.
Senna was famous for using different tyre compounds on his car, so I’m guessing it might have been around 1993 when IIRC I think Goodyear became the sole tyre supplier in F1 & they modified there tyres slightly? Just a guess though.