hi.. I would like to know if 97 540i has the same chassis design compare to M5 (E39). Is it possible to convert 97 540i to E39? (I don't have enough money to buy E39 but I really like the way it looks.) Second question is about the headlights.. Can I replace 97 540i headlights with the newer (2001) lights? (b/c the new lights look very amazing!) Thanks very much for your input..