it's disappointing and one of the problems I had with it during my test drive. But you learn to deal with it. By that I mean you adjust yourself by pressing further faster and it's still smooth. I'm only getting 16mpg majority city at 8k miles - not sure if that has to do with stepping on it more. Is yours broken in yet?

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'08 X5 3.0si - Alpine White / Saddle Brown interior
Specs: Sport Pkg, Premium Pkg, Tech Pkg, Comfort Access, Aero Kit, Style 433 staggered 20s on Conti DWS
Mods: Carbon 35 tint, LED angel eyes, GP Thunder 7500k fogs, H&R 20mm/25mm spacers, clear reflectors, gunsmoke-tinted taillights
Coded: Digital speedo, windows/sunroof/tailgate close via keyfob

X5 pics at Flickr