As compared to a new VW TDI, for instance, which has a few modern emission controls that the 300TD lacks. The TDI is another car I was thinking of buying, so I'm just looking for some numbers to compare with.

DieselAddict: That is the plan, man!

By the way, does anyone know if it's possible to retrofit an older MB with any kind of catalyst or particulate trap? Or is this a crazy idea? Has it ever been done?