Mister Scroggs calls this Czechoslovakian TV spot for the 1962 Tatra 603 the "Citizen Kane of long form car commercials." He's only understating it a little.

It's not from Germany and it doesn't have a flat four (or six), but this 1957 Tatra 603, nicknamed the "Communist Porsche", is rear engined, air cooled and very rare. Best of all, if you've always dreamt of a communist hot rod in your garage this Tatra is currently for sale on Ebay.

This Tatra 603 cutaway demonstrates why we love Czechoslovakian cars. At just 2.4 liters, the champagne-glass-cylindered, V-8-powered, air-cooled, rear-engine 603 put out 105 hp at 5000 rpm. Czech that out. [The H.A.M.B. via Chromjuwelen]