The Cobra photo above suggests that the photographer was Shepard (see lower left corner). Looking quickly at the Princess Blue 289s with red interiors, few were in or around the Kansas City area. But there was one, CSX 2305, owned by Dr. John Johnson, and he was known to autocross the car and enter other speed events. While there is no way to say for certain (unless someone who knew him can say, yeah, that's him driving) I'm going with the car pictured as possibly being 2305. However, I now note that Johnson's car was given chrome wire wheels and lacked a luggage rack. So the only other car that immediately comes to mind is CSX 2205, which was a sales promotion Cobra for the Kansas City sales district. And it had the rack, painted wire wheels, and a radio, which the car in the photo seems to have if the blurry lump at the right rear of the cockpit is an antenna.