My '12 had 8 miles on it when I took delivery. I was careful, I did not hit redline until about 60 miles. Like others said, don;t beat on it, but drive it, enjoy.
Also, many cars come with a factory oil fill that has additives to help break in. Not positive about Subaru, but my last VW specifically said in the manual to NOT changes the oil before 5000 miles.