Dear Customer, may I know which language have you selected? And which country are you from?

 Exactly the same problem here: When you choose English, you have choice of European, Asian and American cars. When you choose ANY other language, USA cars disapear.

Something is wrong with the softwae: not only you don't have american cars but there is limited amount of european cars:, for example in English you have Eutopean->Audi, in French you have European-> ... but there is no more Audi....