Today’s invention is a small, radio-controlled vehicle with rubber wheels containing powerful magnets.
These allow this small car to travel automatically over the outer metal surfaces of a normal car, checking for indentations or other damage. This could work well as a monitor for hired vehicles, being able to detect dents rapidly -damage that a driver might fail to even notice.
The sCARab could also act as a camera platform, snapping anyone in contact with the host vehicle and then hiding under the floorpan whilst calling the owner or police.
Such a device, equipped with a coloured paint pen and eraser, could create a constantly-changing pattern on the surface of the vehicle.