this figure was based on a 1:5 scale-model test, and it has been confirmed recently that the drag coefficient for the real full-size car is 0.36. Versions The Tatra 77 was a hand-built car with a leather interior. Some cars had a glass partition between the front and rear seats. A sliding roof was available. An unusual feature on a few of the T77 models was a central position for the steering wheel in the dashboard. The front-seat passengers were seated on either side of the driver and the seats placed slightly rearwards as in the modern-day McLaren F1. All other T77's had the steering wheel on the right-hand side as Czechoslovakia (like a number of other European countries) drove on the left before the Second World War. The unique car pictured here is the two-door coupé prototype used by Erich Übelacker. This one also had the more powerful engine from the later Tatra 87. Further development Ledwinka was not entirely satisfied with the T77's handling, which was hampered by the car's rather heavy rear. He started work on a successor to the T77, which was to be lighter and have improved weight distribution. Tatra achieved just that with the now-famous Tatra 87 that was introduced in 1936. In culture A Tatra 77 features in the 1935 film The Tunnel at 17:23, and again at 58:30. A 1936 Tatra 77 was shown at the Victoria & Albert Museum in London from November 2019 to April 2020 included in their exhibition "Cars: Accelerating the Modern World". See also Streamlined Tatras Tatra V570 1931, 1933 Tatra 77 1933-1938 Tatra 87 1936-1950 Tatra 97 1936-1939 Tatra 600 Tatraplan 1946-1952 Tatra 603 1956-1975 Tatra (car) Streamliner: Automobiles - for overview of early aerodynamic cars Early aerodynamic cars, chronologically Rumpler Tropfenwagen (1921), first aerodynamic "teardrop" car to be designed and serially produced (about 100 units built) Persu car (1922–23), designed by Romanian engineer Aurel Persu, improved on the Tropfenwagen by placing the wheels inside the car body Burney cars (1929-1931), working prototypes designed by Dennis Burney and manufactured by Streamline Cars Dymaxion car (1933), US "teardrop" car Stout Scarab (1932–35), US "teardrop" car Pierce Silver Arrow (1933), US streamline concept car Chrysler Airflow (1934–37), US streamline car Schlörwagen (1939), German prototype "teardrop" car, never produced Literature Margolius, Ivan & Henry, John G., Tatra - The Legacy of Hans Ledwinka, Veloce Publishing, Dorchester 2015, & References