Have $1 million dollars in the bank while playing in Los Angeles.

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By the end of the game, money is not an issue. If you're really hard pressed for cash, take a decent vehicle and keep playing very hard dynamic freeway races. You'll get $9,100 each time and they only take about 45-60 seconds to win. Also, you may want to keep the following in mind: The last mission is to get $1 million and invest in Karol's garages. Once you "beat the game" and invest in the garage, all vehicles and upgrades are free (provided you've unlocked them). So, if you can beat the game , it would be most efficient to refrain from buying cars and upgrades, as much as possible