The CG 1000 Spyder was unveiled at the 1966 Salon de l’Auto in Paris. The compact convertible had a fiberglass body mounted on a steel chassis with a deep "U" centre backbone and tube-and-sheetmetal outriggers. The chassis was designed by CG. Power came from a 944 cc inline 4-cylinder Simca Poissy engine. This motor had a cross-flow aluminum cylinder head and a cast-iron block with 5 main bearings. It was mounted in the rear of the car, canted over at 15 degrees from vertical and drove the wheels through a 4-speed transaxle that used Porsche-style synchronizers. The radiator was mounted at the rear beside the engine. Steering was worm-and-roller by Gemmer. Front suspension was by a lower transverse leaf spring and upper A-arms while at the rear were swing-axles with semi-trailing arms and coil springs. Brakes were disks on all four wheels, courtesy of the Simca 1000 Bertone coupé. The car, weighting 640 kg, was attractive and displayed a very high quality of finish. Less well received was the vague steering and the meagre power from the stock engine. The price of the Spider was 16,990 francs.