Traded in my BMW X5 4.4i for the 07 Acura TL. It was a wise decision. The TL has a totally comfortable and smooth ride. I love the bluetooth, oh did I mention the better gas mileage. I am sure they will be changing the body style within the next 2yrs. I will probably trade-up then.
Bluetooth, sound system, XM radio.
Folding side mirrors, push button start, power steering wheel tilt.