They had this question come up fairly recently on Car Talk, about whether it was necessary to break-in a modern day new car like used to happen years ago. They said no, it isn't the same, that it should be driven in a normal fashion for the best break-in period.

I remember a break in period on an older pickup, but on my newer one (and it's a 2000) there was no such period of sedate driving. You could visit the Cars.com site for advice. http://www.cars.com/go/advice/cartalk/index.jsp

SRS