I find it interesting that BMW changed the recommended coupe tire pressures from 2006 to 2007. Normally an increase in pressure increases grip (up to a certain point where it will eventually start causing a loss in grip).
My guess is the 2007 coupe pressure change is a North American exclusive thing and this required BMWNA to come up with their own stickers to place over the factory ones. This would explain why the 2007 stickers look like a marketing kid designed them vs a German engineer.
Straight lines are for fast cars...turns are for fast drivers
'04 M3 - track
'06 650i Cab - daily driver
'02 Highlander - kid hauler
'01 330Ci - winter beater