Skoda superb 2.0tdi cr bought last week, seemed to drive ok but had the emissions fix. Booked in with shark today the guys are really nice to deal with, installed the latest pre fix map for the Vag rollback. It was 100 mikes there 100 miles back. 53mpg there 20 minutes with Shark and then drive home again.... 65mpg back home!! (This is from the trip computer mpg)   Will do a tank to tank refill next time but thats a huge jump in economy.   Mostly doing 60-70mph