Write the next sentence in the following story.

How to win at csr racing
Go to http: // www.naturalmotion.com/csr-racing/97, csr racing's webpage, to download your free csr racing game.
Play the csr racing video there to get an idea of what to expect in the game.
Understand the structure of the game.
This game is structured in tiers from tier-1 to tier-5. You advance through the tiers by winning races against some of the best opponents.