I have the most polloutiest car here... 
According to the Teutonic on-board computer, it has averaged 42.6mpg on my last 4 days to work and back. Journey in is traffic free at 05:30, journey home light traffic at 19:15. Theold Lexus was doing 16ish...
Goes alright despite a lag between foot down and actual progress ; presume turbo-diesel trait. Ride quality jiggly compared to the old Lexus, seats aren't heated or electrically adjusted, the ashtray is in a stupid place and the "infotainment" system was designed by an autistic. Other than that, not bad...