Mercedes, BMW, VW and Audi sell expensive diesel SUV's here as well. Plus the VW Golf/Rabbit TDI whatever they are calling it these days.
Our laws are just more inflexible, we actually have tighter emissions laws on diesels than the EU. Which is why I won't own a diesel newer than 2007.
The (stupid ass) Smart Car CDI diesel gets over 70 MPG, and it's not a hybrid, but for some reason they won't bring it over here.