1968 Caldwell D8 Formula A car built by Ray Caldwell's company Autodynamics in the USA.
Formula A was the North American version of the British Formula 5000 racing series using an F1 type chassis with a production car based iron block V8 engine (in this car a 302 cu in (5 litre)Chevrolet to save costs over F1.
That Caldwell was their only Formula A car, it was driven by journalist Sam Posey.