Ditto the above. Blame it on European regulations:

In Europe cars must conform the UNECE Regulation No. 39, which requires that the indicated speed is not less than the true speed of the vehicle.

If you want more details...just google UNECE regulation 39...download the PDF and take a gander at why your speedometer reads as it does.

__________________
Become a BMW CCA member! Click HERE to join and feel free to use my BMW CCA member #191509 as a referral.

• 2015 f06 650ix GC (Moonstone exterior/Cohiba brown Merino Leather interior)
• 2014 f15 X5 50i (Space Gray exterior/Mocha Nappa Leather interior)