I have a couple of them, and Barkas as well. Yes to to US only the 311 was exported.When the berlin wall built, the business went wrong and stopped.Interesting fact that the same designer drawned the 311 and the 353 also.His name was Hans Fleischer ang got design merit award for both cars.The 311 compared with a 353 is a hand built very complicated and needs a lot of man hour to build, it has beautiful shapes and details, wood armrest, beautiful instruments and so on.The 353 is simple as a brick, easy to manufacture, easy to put it together and easy to operate.No fancy details, just a good workhorse like a Model T at its age.Lots of people hate 2stroke because of the smell and the blue smoke, but if the exhaust system is clear, and good 2T oil is used its not so bad.I use mine more than 15years. Its a 1975 Tourist, which mean estate in Us.