Why are American cars so unpopular around the world?

Here in Spain, about one in every million cars I see is an American car, the rest is all Renaults and Fiats and Japanese cars.

I know American cars often have problems with cornering compared to other cars, and that they are usually larger and more expensive to run than say most Japanese cars, but for my taste, Americans make the best looking and coolest cars by far. Specially the older models from the 50’s and 60’s.

If someone turned up to a club here in the newest Ferrari they would not turn half as many heads as someone who shows up in a well polished classic American car.

In a world where we get our movies from Hollywood, and our burgers from Mc Donalds, why have American cars not spread the globe?