Just turned in our rental car at the Frankfurt airport and checked the computer readings for info. On our trip we put on 3700 km, averaged 90 mph and got 37.6 mpg! This was a 320d and wow was it a great car! It maxed out at 246 kph according to the speedometer. My son went online and this car is rated at 49 mpg! Why can't we get these cars in the states???