This is an interesting creature indeed. Avia is a Czech aircraft and automobile company founded in 1919. Although they mostly built airplanes and trucks they did manage to make a very cool race car. It follows the Colin Chapman theory of ”Simplify and add lightness” by basically frosting the minimal frame with thin aluminum. Very Birdcage Maserati I must say. Get over to the excellent writeup by the guys at the hooniverse and enjoy the interesting history lesson.