I like your design #61 a lot. I like what you did with the red/white/blue bars. I would ask that you chance the bronco so that it is standing up more on it's hind legs like it is wild. Make the line around the outside ring of the outter circle thicker so it is more defined. Change the two (2) stars that you are using to a cap nut and make them just a little bit larger. Try making the bronco silver instead of black. Those would be my recommendations for your designs.
To avoid trademark infringement issues with Ford, we probably need to change the horse. The Ford Bronco horse looks really close to this. Maybe the horse should be standing up on it's hind legs as though it is rearing up like a wild horse would do.