Very fast and handles better than any car I've had (including '99 328i, '02 A4 Quattro...). I still love the car, looking for a new one only because I want to get rid of this one with some warranty left on it.

I've actually fit a decent amount of stuff in it (small dining room set, patio set, and a huge "clubhouse/climber" outdoor thing for my niece). You have to get creative, but there's room in there, clearly not as much as in the new X5 or in the Cayenne though.

I have mixed feelings about it in the snow, if that's a concern for you at all. There is some hesitation for the AWD to kick in sometimes, but there's also a Snow button that I think locks in in place. I've had it for 2 years, but not in enough storms to have a good review on it. Things I've read suggest the BMW AWD system is better. Not sure about the Cayenne.

Overall, the FX is a pretty good value if performance is high on your list and you're willing to sacrifice some of the utility and some say the quality of interior materials isn't as good, probably true but it's certainly not 'cheap' feeling either. The '07 X5 3.0 won't compare to the performance, but the 4.8 will meet or maybe slightly exceed, with a higher price tag, but you do get a return on that money. I'd definitely recommend considering the FX45 to anyone looking for a performance SUV. I guess the FX35 would be a good alternative if you're more in the X5 3.0 market, but it's a huge difference in power, in each car to go to the bigger engine, as you'd expect.