1934 Tatra T77
- Engine
- Rear-mounted air-cooled V8, just under 3.0L, overhead-valve
- Colour
- Dark blue

The ninth production Tatra T77 chassis, this 1934 example is one of only five known restored and drivable survivors of a model built in approximately 106 examples. Designed with radical aerodynamic principles—including a rear-mounted air-cooled V-8 and a stabilising dorsal fin—the T77 achieved a drag coefficient of 0.245. Originally acquired by Count Jaromír Egon Czernin-Morzin and used in an Alpine tour, the car passed through obscurity before a barn discovery in Slovakia. Following acquisition by a German enthusiast in 2005 and subsequent sale in 2007, a comprehensive, decade-long concours-quality restoration exceeding one million US dollars was completed by International Auto Restoration of Oak Lawn, Illinois.
Ownership
- —Auction saleSold US$390,000
- 1935 → 1936Acquisition unknownCount Jaromír Egon Czernin-Morzinpartial documentation
Used the car for a tour through the Italian Alps shortly after acquisition. Research-based attribution rather than fully documented.
- 1936 →Acquisition unknownUnknown Czechoslovak or Slovak owner(s)none documentation
History is largely obscure due to wartime and Soviet Bloc conditions; the car is believed to have remained in use until roughly the mid-1970s, then stored in a barn in Slovakia.
- 2005 → 2007Acquisition unknownGerman enthusiastpartial documentation
Acquired the car from storage and displayed it at the Essen Classic Motor Show in 2006.
- 2007 →Private saleConsignorfull documentation
Had the car shipped to the United States and commissioned a comprehensive, fully documented restoration beginning in 2012, with total expenditure exceeding one million dollars.
Competition
- 2006Essen Classic Motor Show 2006Exhibited
Car was displayed by the German enthusiast owner prior to sale to the consignor; no competitive result recorded.
Maintenance & restoration
- 2012RestorationInternational Auto Restoration
A comprehensive, no-expense-spared concours-quality restoration began, encompassing bodywork, interior, and full mechanical overhaul. Decayed ash wood framing was replicated by a French artisan after 3D scanning of surviving structure; the factory sunroof was replaced with a solid roof; new front and rear bumpers were fabricated; the interior was retrimmed in period-correct gray leather with walnut veneer dashboard. The air-cooled V-8 received new pistons, connecting rods, and valves, with a new-old-stock carburettor sourced from the Czech Republic. The transaxle, braking, starting, and electrical systems were overhauled; front suspension components were replicated where originals were beyond repair; the steel box frame was repaired; trafficator signals were restored; and three replacement wheels were fabricated to match the originals. Total investment exceeded one million US dollars.
The restoration was completed over approximately a decade and is fully documented at a dedicated website. The workshop is located in Oak Lawn, Illinois.
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