Can a car be repossed from neighbers driveway?

YES. The repo company can take the car from anywhere they want with the exception of a boot on the vehicle and/or the vehicle is in a locked property such as behind a locked fence surrounding the property or locked inside of a garage. If you do not let the person onto your property with a locked fence surrounding this is a voilation of the law and ofcourse YOU can have them arrested on the spot.