I have been driving a 59 plate Passat with the 140 diesel engine for just over a year. It is currently up to 40k miles, I have done about 30k of those. So far it hasn’t had any problems, well except a bad oil change by the local VW dealer which caused an oil leak…
MPG is around 50. A long motorway drive at 70mph will go well above this, faster driving will drop it down to nearer 40. In the summer we did a long trip to the South of France. The car was fully loaded with 2 adults, 2 kids, three bikes and a roof box, most of the way we were doing about 75mph and mpg was around 40, which wasn’t too bad considering the about of stuff stuck on the roof.
It is much less of a drivers car than a BMW. I had a 1 series before this, and the handling of the Passat is very different, however for lots of motorway miles, and carrying kids and bikes the Passat is ideal. Build quailty seems comparable to the BMW.
Mine is a Highline spec, which adds heated leather seats, cruise control and a few other nice extras. Surprisingly the only thing I find it lacking is climate control, it has A/C but you can’t just set it to one temperature and leave it – climate control has pretty much been standard in all the previous cars I have had.