Depending who you talk to, the track is a great place to break it in. There's 2 different theories of breaking in an engine though, one is keep it under a certain rpm for so many miles, then keep it under a little higher rpm and so on. This is what the dealer tells you to do. The other is just go balls to the walls with it, but make sure you vary the rpms and don't keep it at any one rpm too long. If you choose the latter, the track is a perfect place. Personally I've done both and didn't have problems with either method.