Brian,

I posted on another thread about diesel hybrids. VW did make one golf that was a hybrid diesel that averaged 70+ but the production cost outweighed the desire to build one so it won't happen. They said the hybrid part is way too expensive to build and would just price out the vehicle price so instead they'll focus on better diesel engines. bmw and mb said they believed vw's decision and will be following suit.

So unless some other mfg decides to do a diesel hybrid we won't be seeing one of these for some time.