Diesel cars are great but not for here. Unless ur doing alot of highway driving then fine. I speak from experience, I have a TDi in the family now for 6 years and my e46 gets 60-90 km per tank less than the Jetta. Same driving habits!
Highway driving TDi gets abit more but for the difference you pay on the Diesel engines the premium isnt justified.
Id rather pay LESS for the gas engine and get more power and pay a few bucks more on gas.