Originally Posted by N8N
The European regulation, ECE-R 39, is more concise, stating essentially that the speed indicated must never be lower than the true speed or higher by more than one-tenth of true speed plus four kilometers per hour (79.5 mph at a true 70). Never low.
Cool. I had no idea.
That will, though, probably only help me to speed even more....
Current: 2011 335i xdrive Special Edition, AT (sigh), Executive, M-sport, Ruby Black on Oyster
2009 335i xdrive / 2007 328i / 2001 330i / 1997 535i / 1973 2002 ("the Dub")