I am a proud owner of a 2004 Honda Civic Hybrid. I know that diesels are also popular. But, why are diesels gaining popularity when in my state (Ohio), where diesel fuel is actually more $/gal (sometimes +25cents/gal) than premium (93/94 octane) gasoline.

What I'm asking is why have a car that gets less MPG on more expensive diesel fuel (I read the VW Jetta TDi gets 38MPG), while a hybrid (such as my HCH) gets higher MPG on less expensive gasoline fuel (48/47MPG on 87 octane).