If you are driving 90 miles, you should NOT do it non-stop. It is EXTREMELY important to stop every 10-15 miles, get out of the car, rand un around it 3 times, yelling "WOO HOO!" If you are under 50 years old and under 250 pounds, doing cartwheels is also appropriate.
BTW BMW has always recommended varying the speed / RPM's during break-in. If you use cruise control on the drive home, you may want to vary the speed. This may not be any more helpful than the cartwheels, though.
PS: bed the brakes, to extend the life of the pads and rotors. If you do not know how, do a Google search.
2014 328i Sport Wagon
, Glacier / Black, ZSL, ZD2, ZD3, ZDH, ZLP, ZPP, ZTP, and H-K
2011 535xi M Sport
TiAg / Black, ZPP, ZP2, ZCV, ZCW, ZDA, 2TB, 6NR, 465, 5DL, and a Partridge in a Pear Tree
2011 X5 35D
2008 ///M3 Vert
2008 X5 3.0
2007 X5 3.0
2006 X5 3.0
2006 550iA SP
2003 540iA M-Sport
Last edited by quackbury; 10-04-2010 at 09:21 AM.