Achievements:ACHIEVEMENT – HOW TO UNLOCKA true winner (80 points) – Win 100 Xbox LIVE races.Afterburner competition medalist (25 points) – Win at least a Bronze Medal in the Burner Cup in Tournament mode.Airborne (5 points) – Gain a boost feat using air control. Amateur World Cup medalist (30 points) – Win at least a Bronze Medal in all the Amateur World Cups in Tournament mode. And who