I agree, we have a VW Jetta TDI, but a 4 door car. Gets fantastic fuel mileage. When we cross the state of ND to Fargo, running 75 mph, we get 40 mpg. Sometime, I want to take the time, and drive it at 55 mph. I know we would get over 50, maybe approach 60 mpg.
I also pull at times a fiberglass clamshell motorcycle trailer, with a 900# Valkyrie in it. Get 30 mpg at 65-70 mph with that! Total wt. about 1800#, tow rating is 2000# on the Jetta
Now, if we could just flat tow it! No newer VW is rated to flat tow, according to the books. So, with our BB we are getting, I guess we need to get a dolly.