The owner of a BMW multifunctional car key will soon be able to go shopping with his key only. It has a credit card function which will allow money transactions without having to carry your card or cash. The project manager says that the BMW multifunctional car key will probably be used in the future as a bus ticket or any other transport system. Besides this financial aspect, it will also have other advantages. The BMW multifunctional car key will record the radio settings, seat and mirror modifications of each person who uses it. This way, if a BMW is used by more persons, they can each have their own BMW multifunctional car key and the car will recognize their preferences.