Magnus Rundqwist 
2014 BMW 3 Series Diesel 328d 4dr Sedan (2.0L 4cyl Turbodiesel 8A)
To New York and back 51mpg!
 I love the car. This is my 3rd 3-series, -when my last 328i at 180,000 miles started to show signs of costly repairs I thought is was time to trade in.I was hopping around for fuel efficient cars including hybrids, once used to the driving environment of the BMW its difficult to switch. The car has been 5/5. The mileage I get has been great. I am a bit of a mpg-geek and think its fun to keep track.Most recent was a full-packed 4 people trip to NY from Atlanta, including Labor day traffic jams and driving on Manhattan. Coming home after 1750 miles the trip computer showed 51mpg average. -I'm happy with that.Around town (Atlanta traffic 25-30mph average): ~40-45mpgMPG "geek" driving (careful driving smooth acc etc): 55-60 mpgUpdateI have now driven the car over 15,000 miles. No issues. I really like the torque of the dieselSometimes I get an annoying warning about a malfunctioning parking light. That’s about it.After my initial “mpg-craze” I still routinely get >50mpg on longer highway trips.  City traffic is probably more like ~38mpg. Typical highway at 75mph: ~53mpgUpdate50,000 miles. Emission light came on at 49k, dealer changed fuel injectorsHad my first experience with run-flats while travelling. Drove 25 miles to a Wall-mart, bought a plier and a plug-kit, repaired the tire on the parking lot. -Great!No other problems!Update 65,000 milesAbsolute Zero Problems. Bought new tires