I have a brand new 01 MB EX. I am going on a road trip from MD to Charlotte NC (approx 400 miles one way.) In the Owner's Manual there is nothing about the driving above 55 mph during this period. I have a 95 Toyota Corolla and I remember that I had to limit my speed to 55 during the first 500 miles when I first got it. Has anyone taken there new Ody on a roadtrip before the end of the break in period ? If so, did you limit your speed ?