If you've played Forza Motorsport 2, Forza Motorsport 3, Forza Motorsport 4, or Forza Horizon on Xbox 360, you may be eligible for free, new cars when you start playing Forza Motorsport 5 on Xbox One. Players can login to Forza Rewards and claim in-game credits based on their experience with the series. The tier level you're in is determined by numerous factors, including achievements earned, miles driven, and more. According to Microsoft, all rewards are stackable, "so if you are Tier 5, you get that level's rewards plus all the lower-tier cars and credit bonuses." Here's the breakdown. Tier 2: Ford Fiesta, 10,000 Credits Tier 3: Audi RS 7, 20,000 Credits Tier 4: Ferrari F12, 40,000 Credits Tier 5: McLaren P1, 80,000 Credits Which cars do you qualify for? I'm tier 5 with 4544 points ..