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The RS200 is earned by getting first place in the Rally Cross World Tour.
It's more something you unlock pretty late in the game.
And, for future reference: You can't swap save games with someone. The game uses Games For Windows LIVE as it's base for save management (And achievements, obviously); You need someone's save game, LIVE profile files, AND access to their account to be able to use someone else's save. Prevents such cheating and other such things.