This design used cogwheels and racks along the rails for traction since the friction between wheel and rail was not trusted.
... - Alain Prost, (France) 1989 - Ayrton Senna, (Brazil) 1990 - Ayrton Senna, (Brazil) 1991 - Ayrton Senna, (Brazil) 1992 - Ayrton Senna, (Brazil) 1993 - Ayrton ...