Many improvements and changes since my 02 ML-320. Averaging 28.4 mpg combined driving for first 1400 miles. For highway driving- 29.7 mpg. GPS shows where ULSD Diesel stations are located. Good safety features- Transmission will go to park (P) if you open the door. Doors have reflectors so if the door is open in dark, will reflect when hit by other light source. Actually is lighter than 02 ML, and a little longer. Very well done.