In a tournament race, do not finish the last race in first place, but in second or third place. Note: Second place is worth more money. Do this as many times as desired for quick money. In the middle of career mode, buy any car (for example, a '64 Impala). Fix it up nicely with level 2 performance parts, etc., which is worth $43,500. Make a duplicate of the car in the "Manage Vehicle" menu. Make at least five duplicates, but make sure to change some of the letters or numbers of each duplicate. When all of the duplicates are made, choose the duplicates and select "Sell The Vehicle". After selling these versions, you will have easy money in career mode.