Yes, they are right in their review of the X5. It is a lot to handle. You really can't let your attention leave on the highway or it will drift around. Also, in order to get performance sedan-like handling, the sport package gives an incredibly stiff ride. It's the only way to make the 'ute handle well. Overall, I didn't want to get a 540i. It's just too plain looking to me, and something that can be overlooked on the road as "just another car" even though it handles incredibly well. The X5 looks like a really cool SUV hybrid vehicle, even though it has no utility. I dont really care though, it's a blast to drive as is the Discovery. Both have their pluses/minuses. The Mercedes is in between the two in terms of handling.