In order to make sure that unsupervised races could be absolutely fair, checkpoints are placed at strategic points around each race track. These must be triggered in sequence in order to complete the race. As a side-effect, this also Pretty much anybody who's played XMP for more than 5 minutes is likely to have discovered how much fun the Raptors are to drive, and many others have thought - with varied success - what a great idea it would be to race them.