Captain Marvel Lightning windup metal cars

I have one orange Captain Marvel Lightning Racing Car #2 and one blue #4. The cars measures 4" in length and has a side wind up slot for key. No keys are included. I cannot verify the windup mechanism functions but the cars are sound and have no internal parts loose. Sides marked "Automatic Toy Co., NY", and "Cop. 1947 Fawcett Publications, Inc". The cars are in good condition considering age showing light scratches to litho with light scuffs to the bottom but none breaking thru the coating. All original tires are included and not loose.