Abstract: Instead of changing a flat tire, a device is provided which comprises a circular plate of a diameter substantially equal to that of the tire, provided with a rubber or the like rim allowing the driving of the automobile thereon in substitution of the flat tire. A segment portion of the plate is hinged thereto so that it is foldable away of the plane of the plate. The plate is mountable to the wheel rim, means being provided for securing the segment portion to the plate in the non-folded position thereof after driving the automobile by a short distance. A modified version of the device is applicable to snow or sand driving.