[tombea]

Unless the weather is so bad where you live that you can't drive it during the winter, I would not store it. Taking the car out once a week for a nice drive will not harm the car any more than taking it out on a daily basis. You need to bring the car up to temperature, however, and drive it. If you store it you lose any chance of driving it on that rare winter day that it is warm enough to go top down( with heater and heated seat naturally).