When I was stationed in Brunswick, my step dad let me have his 80 Rabbit diesel. If I remember correctly I could make the trip from DC to Maine in one tank. Loved that car.My Dad back in the day had a VW that got 65 mpg diesel. That was like 30 years ago. I really don't think 50 mpg is really that impressive. I think we have honestly been fouled into thinking that is good. But I understand the point of view.