Interesting to see a KAT ( Kenosha auto transport) truck hauling Studebakers, (probably in South Bend IN.)KAT was based in Kenosha Wisconsin and transported Nash, then AMC.
Pictured in 1959, World Champion in a Cooper, later (‘67) repeated the feat in a car bearing his name, the Repco Brabham BT19, Australian, Sir Jack Brabham.