AVA was a Czechoslovak racing-car marque of 1947 to 1950 and 1964, linked to Auto-služba Praga in Prague. It was the work of Arnošt Vávra, a designer and racing driver from Jiřetín pod Jedlovou. He built single-seat racing cars from Aero Minor parts and raced them until the second half of the 1950s. The drivers Brenner and Turek also raced the cars. The Minor engine initially displaced 615 cc and…