You may not know it, but BMW is changing your 6 Series.   Some slight body panel updates on the hood, bigger wheels, and some minor exhaust updates.   BMW's are well known for for their handling, delivered by the finely tuned BMW Suspension.  The 6 is quite a thirsty car with or without the updates, although BMW does a pretty good job of maintaining efficiency by properly monitoring the BMW Air Mass Sensor, and sending just the precise amount of fuel to the BMW Fuel Injectors to optimize both economy and power.