What content is unlocked at which levels of the game?

Level 2 – “Peer-to-Peer” racing: You can invite your friends into the game and compete against them in real-time peer-to-peer races!
Level 3 – “Stakes Racing”: Up-the-ante with your friends and compete in “Stakes Races” where winner takes all the “Coins”. Plus race against people that are in your your cohorts.
Level 4 – Leader-boards: See where you rank! When you reach level 4 see how you and your horses compare to the rest of the Blazing Silks World, your cohorts and your friends.
Level 5 – “Gold Cup Challenges”: Gold Cup Challenges provide you the opportunity to race at some of the greatest tracks in the World as well as meet some cool characters and beat some pretty tough horses.
Level 6 – “Win and You’re In”: Here’s your shot at instant glory, win at one of these tracks and you will be automatically entered into the Breeders’ Cup Classic Championship as well be entered into exciting contests at these tracks.
Level 7 – Contests: If you can make it this far, you will be entered into our Breeders’ Cup Classic contest and have a shot our “Super” contest during this year’s Breeders’ Cup Championships.