1954 CONCEPT SKETCH BY J.R.SAMSEN FOR 1955 FORD D-523 "COUGAR" EXPERIMENTAL CAR. BUILT ON A '55 THUNDERBIRD CHASSIS, THIS CAR WITH "GULL-WING" DOORS TESTED MANY INNOVATIVE FEATURES, SUCH AS FUEL INJECTION, AND WAS NOT SHOWN TO THE PUBLIC FOR 8 YEARS, AS THE MANAGEMENT FELT IT WAS TOO ADVANCED, COMPARED TO THEIR PRODUCTION CARS.