My neighbor, as a hobby, buys, fixes, and sells TDIs and I also met a retired guy in the Seattle airport who would fly all over the country to drive used TDIs to a dealership that would do the same.
When my wife "convinced" me to sell my 2000 TDI new beetle to our son (with 170K miles, it drove like new and gets 50 mpg on BioDiesel), my first replacement search was for a Diesel smart. With no luck there I tried for a new TDI new beetle. Also not possible in 2009.
So I settled for my gasser smart and while most happy with it, still wish we were a more Diesel friendly country.