No one in my family ever used them, and they always make it more difficult getting out of the car and stepping down. My wife hated them and insisted we don't get them on our new 2010.

__________________
CPIGUY
Arnie Friedman

2010 X5 3.5D, Alpine White, Saddle Brown Leather
2010 M3 Coupe, Alpine White, Silver Novillo Leather
2008 Ferrari 430 Spider, Red, tan