The right side steering column control looks like it might be for the windshield wipers and washer spray. In this case the wipers seem to be stowed in their discreet and cleverly concealed compartments so as to reduce aerodynamic drag. I suspect these fancy wipers were only available as a special order from AC. I can understand why Shelby never ordered any chassis that way from AC since it is simpler to just remove the wipers on race cars to improve aerodynamics.
