Bout that Lupo, VW/Audi had 2 "3-Litre"-cars back than (the other being the A2 with the same 1.2L TDI), but prices were so insane (you could easily buy a car 2 classes bigger with loads of extras for the same money), that they sold miserably and were canceled after a few years.
The only 3-Litre car you can still buy new today is the Smart-4Two-CDI, but that really a 3.49-Litre car and also costs your 1st-born (no problem as you won't have place for any kids anyway) :crazy:
I'll rather stick to my solution, only drive 6000km (or even less) a year with your own car ...... :-P