in the states, we have what's known as an automobile exception - essentially, cops know they can get away with (in a court/evidence sense) a vehicle search if they have probable cause. whether you're driving it or not.
it kinda sounds like you're anticipating a visit, and looking for a stash spot - your car is the last one i'd use.
the warrant will usually specify that it is for the property and any buildings cars and people on the property