To have $10,000 extra dollars in career mode, you must have a memory card.

Okay, To have $10,000 extra dollars in career mode, you must have a Need For Speed Carbon save saved on your Memory card. Insert the memery card into your console's Memory slot (Slot 1). Then, start Need For Speed Pro Street and make a career (Make sure to make an Alias). It will say "Thank you for playing previous Need for Speed games." Do the race, and come in first or you won't get to the heart of N.F.S.:P.S. Normaly you would have $10,000 dollers now you will have $20,000 dollers.

This is also lke Need for Speed Most Wanted will give you, I think... $5,000 extra dollers if you have a N.F.S.U.2 game saved (I the N.F.S.M.W save game on the PC).