bpseattle 
2008 BMW X5 SUV 4.8i 4dr SUV AWD (4.8L 8cyl 6A)
WOW! 4.8 is amazing
 I have owned many makes and models of european cars and this SUV got me to switch from sedan owner to SUV owner. The 8 cylinder is a blast to drive and has a very solid feel. The iDrive is very  easy to use and fairy intuitive.  If you can afford the extra $$$ buy the 4.8 you will not regret it. 