For this race only, the rear of the car was painted in red and white vertical stripes, with a sort of propeller logo which must be connected with the stripes as they didn't have it in other races. It was only Senna's car too - the other Toleman (Johansson) had the more usual red/white/blue paint scheme.
This logo looks vaguely like the Carlsberg logo but isn't quite the same.
This has been bugging me for years, and as I have just found this excellent website I thought I would ask on here.
Any suggestions gratefully received, thanks
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Johansson in the other car at the same race...