Use Gamehack (A Game hacking program) ,while in main menu,enter the evolution mode,get into the garage,write down your account money,then press Alt-Tab to go back to your desktop.After that activate Gamehack,select process-Porsche,then press the binocular(find).In the value section,write down your account value anf click the button find.Let Gamehack find the address first and after it finish,double-click on the address and enter 999,999,999 but don't 1,000,000,000 and above because it will decrease your account.After that,close Gamehack,and then press Alt-Tab again to go back into the game and now you got yourself 999,999,999 account.