GameSpy have reviewed RalliSport Challenge for the Xbox, giving it a total score of 91/100.
Because the graphics are so stellar (more on that further down) the game appears to be a sim. The car takes damage. The spoiler may show some bumps and bruises. If the right side of the car slams into a stone wall, the side windows will break, but not in that "polygons fly everywhere vaguely looking like glass" sort of way. Instead, on your next powerslide around a right turn you'll get a glimpse of the glass crumbles and a hole in the window as if someone threw a brick through it. Superb!The full review is available here.