The Autoavia was a lightweight, two-seater prototype commercial vehicle designed by Karel Ovesný from Prague. Powered by a twin-cylinder, air-cooled Jawa 350cc motorcycle engine, it drove the left rear wheel via a Hardy clutch. Weighing just 380 kg, the Autoavia could reach speeds of up to 75 km/h. Its frame featured a convertible flatbed area above the rear wheels, measuring 1,250 x 800 mm with a 200 kg load capacity. Despite its modest size and power, the Autoavia showcased innovative design in an amateur competition.