New shift button feature
I recently picked up a 2005 E55 wagon and noticed that the shift buttons on the back of the steering wheel function differently than on my 2003 E55. In the older model, you had to place the transmission into manual mode before the buttons functioned at all. In the 2005 model, I can use the buttons at any time regardless of transmission mode. I like this a lot, but when my wife drove the car, she accidentally touched and held the left shift button, which of course placed her in the lowest possible gear. Listening placidly to opera, she wondered why she was bouncing off the rev limiter.
No need to state the moral of this story, but when did they make this change?