It also depends on how even/uneven your floor is. I measured mine last night and the floor in my garage is pretty even, it was higher on the left than on the right. I really don't know by exact amount. If you are not comfortable with it, you can bring it back to my house and we can measure it and we can compare those measurements with the ones on my car.
'09 E92 ///M3 Interlagos Blue, 6MT
, Silver Novillo Leather, CF Trim, Premium Package, Technology Package, Cold Weather Package, Premium Sound, 19" Wheels, Moonroof-Toy/ '11 E90 328i
Black Saphire Metallic, Premium Package, Technology Package - Daily Driver '02 Nissan Xterra- Daily Driver/ '04 Yamaha R1
-Toy/ '06 Yamaha Raptor 350