Got this car for thousands off because I bought it in 2007 when it was a 2006 model, but it was new. Very happy with the looks outside and inside. After a 5 months I had some problems, some anti-skid message that kept coming up, they said it was a computer problem but it happened twice. Possibly due to extremely horrible speed bumps where I live the car began making weird clicks when the gas/brakes were pressed; brake pads, alignment, sub-frame, etc all needed work. Right window makes whistling noise. DVD system headphones sound fuzzy sometimes. Very fast for an SUV, and I always feel safe.
Big engine, very fast for an SUV. GPS system, pricey but I love the positioning and very very easy to use, and can be used while in motion. Extremely comfortable seats. Love the tailgate, it is great to sit on! I also drive a 550i but find myself missing the Volvo.
Gas mileage, stereo system is horrible, impossible to get iPod integration without removing the entire system and spending tons of money. Better reliability.