| 摘要 |
In a preferred embodiment an automobile having four extra accessory utility wheels mounted on hydraulic jacks, with the back two accessory wheels being connected for synchronized steering thereof in both lateral and forward directions of movement of the car as well as the forward two wheels being synchronized with one another for synchronized steering in both lateral and forward directions and there being switch means whereby the front wheels and the rear wheels may be synchronized to one another for the forward and/or lateral steering, and at least one of the sets of front and back accessory wheels being connected for and including propulsion means alternately drivable by the regular automobile motor or by an electrical motor, the electrical motor-including embodiment also including accessory batteries connected to provide electricity to any accessory electrical motor and also connected to continually charged if necessary by the generator of the automobile, this above described combination of this invention providing both parking advantages and emergency power and wheels in the event of flat tires or other mechanical difficulty requiring supplemental driving power for propulsion of the automobile for reasonably short periods of time to remove the automobile from hazardous traffic locations or to propel the automobile to an appropriate next-occurring filling station or repair facility.
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