The puzzle car is KDV 3
KDV = K(onstrukter?) D(louhy) V(orel)
Jaroslav Vorel started his race career with touring cars. Later on he raced a MTX 1-02 monoposto in hillclimbs, in 1983 a MTX 1-06. In the 1984 season, Vorel won the Czech Formula Easter championship (I think to remember, with KDV 2, but I am not sure about)
In 1985, together with Karel Dlouhy, he developed the Lada-powered KDV 3 with duralumin monocoque. With the KDV 3 Vorel became Czech Formula-vice-champion in 1986 and 1987. In 1988 he competed in Formula Mondial and went on to win the national championship. In 1989 he debuted with the KDV 4, a Volkswagen-powered Formula 3 car in the German Formula 3 championship. He took part in two races.
Pardon, I am not sure, but did you forget to award me with a point for solving the puzzle? Sorry, if you did it, and I couldn't remember clearly my previous score