Low-Tech Parking Aid

Ann's got a new car, and we've decided to keep hers in the garage and mine on the drive now. But the garage is a little cosy compared to the size of the car, so we need to make sure that it fits in without bumping into the far wall.

Now, this car has got a very fancy 360º parking camera system which should make it easy! Thing is, neither of us particularly trust the camera technology and so have decided to go for the very lo-fi invention of a tennis ball on a piece of string attached to the garage roof :-D