Since I purchased my diesel Golf, I have driven 10,000 miles and my miliage has improved from 40/48 to 42/48. I get 600 miles to the tank of fuel on the highway. The only problem to date is a plugged water line for the rear wiper/washer. The cruise contol is ackward to use.
I bought this car used in 2010 from a vw dealer and I have been disappointed since. I save a lot on fuel but I make up for that with the thousands of dollars I've sunk into it for repairs. I'm probably up to over $10,000 in repairs and that is from thoroughly shopping around and getting the best deal. Dealership sold me a "bumper to bumper" warranty which was voided the moment we took it for an oil change at a non VW dealership.
This car has been a dream. It gets 44 mpg combined and I don't drive slowly. It has more than enough power and great acceleration even with 4 passengers. I am waiting for the warranty to run out so I can convert the car to run on used cooking oil, no Prius can do that.
This is my second TDI Golf. They are excellent cars, so I've nothing negative to say about them. I've dressed both of mine up a tad. I've added a few holographic "roses" to the door panels, a holographic "Chick Lit" sun shield and a couple other decals on my latest beauty. It's a very smart, classy looking little car that I'd highly recommend to anyone. If you look after it, it will look after you.
I purchased my 2006 Volkswagen Golf GLS TDI about two weeks ago and I absolutely love it. I have put over 300 miles on it so far and still have a little more than half a tank left, this tank was filled full when I purchased it.