My sister-in-law's Volvo sedan has rolled its odometer twice.  Not sure what's wrong with it now, but many of the motorized electrics don't work, such as a window or two, and other maintenance items are adding up to the conclusion that it needs to be replaced.  
SIL wants a hybrid.  I stress that hybrids' price premiums will not break even on the saved fuel unless gasoline prices climb above maybe $5 a gallon and stay there, or much of that price premium disappears in 6 months.  She's also 6'3" or so, and of, er, ample proportions.  The little streamlined monocoques of the Prius or the hybrid Honda will probably not fit her.  
She has a loooong commute from Herndon VA to Frederick MD every damn day.  Any place she'll move to early in the life of this car will create a commute of comparable distance.  
If she wants the fuel economy and the long engine life, and the option to use a biologically derived fuel, 
I'm thinking diesel, as I am thinking of it for myself.  Will a woman of SIL's proportions fit into a Jetta TDI?  (yeah, they take a price premium too---ever price a pre-owned TDI?  Still, it's manageable.)
Are any other carmakers offering or planning performance-diesels for passenger cars?