Answer
Czechoslovakia (Czech Republic) The Company was Named After the Tatra Mountains Which at the Time Were Situated on the Polish-Czechoslovak Border. Interestingly the Original Volkswagen Beetle was Strongly Influenced By the Tatra V570 Which was a Prototype Developed By Tatra in the Early 1930’s with the Aim of Making a Cheap Peoples Car that was Aerodynamic. Tatra’s Austrian Designer Hans Ledwinka was Known to Dine with Hitler and the Beetles Chief Designer Ferdinand Porsche)