Quote:
Originally Posted by 1HOT BMR
Why? Weight? Gearing? Your lead foot? All of the above? I cannot get my 550i to do less than 11 mpg no matter how hard I accelerate or how short my trips are. In fact my overall consumption with lots of city miles is around 17 mpg, and I believe the engine is the same. Look for gasoline puddles under your car when you park  |
Weight difference, yes. And keep in mind its NYC, everybody here drive, like they just stole they car. Not mentioning the traffic nightmare. Plus I have BMW tune up, so I have instead of 400 hp i have 450. I guess they just tweaked the ECU.