are simply no belts which can break or chains that will loosen up after a while. if you possibly can handle a relatively high price, you might get the best choice, the belt drive motor. it's completely silent and runs in high speed, so, it won't take long to enter or exit from your own garage. if there's a bed room on top or close to the garage and noise is definitely a consideration a belt drive is the smart choice. obviously, if you're unable to manage to pay for it, you will have two additional possibilities: the first one is the screw drive, which is not that expensive however 