I am looking into purchasing a 2004 328i sport package is has 40,000k miles i need some advice from owners with cars a-like this one on what i should look out for, and the estimate cost on repairs and maintanance for a car like this, i plan to get a full inspection at a certified repair center before the purchase, what are your experiences on owning a vehicle like this one??? so if you would help me out a little i would appriciate it