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Matra-Simca MS 670B
The Matra-Simca MS 670 was a Prototype race car that won the Le
Mans 24 Hours 3 times in a row (from 1972 to 1974) as well as the
World Manufacturers Championship twice (1973 and 1974).
The version used in ‘74 for Le Mans was the ‘MS 73’, with a maxi-
mum torque of 320 Nm at 8400 rpm , reaching a maximum power of
450 HP at 10500 rpm. On the Mulsanne straight the car could top
The car was designed by Bernard Boyer and Jean-Louis Caussin. The 320 kph.
long tail version, designed in ‘74 for Le Mans, was still called ‘670 B’, Brakes had Girling ventilated discs, all-round; in 1974, the rear brakes
‘B’ being the distinctive letter of all Matras that were fitted with the were moved inboard. Rims dimensions were 13” x 11” at front and
Porsche 5-speeds gearbox.
15” x 15” at rear.
The chassis was an aluminium monocoque, with fiberglass body.
The car weighted 693 kg.
The engine was a 3-litres V12 at 60°, with aluminium block and head; There were three ‘670 B’s racing in Le Mans in 1974. Number 8 was
bore was 79.7 mm and stroke 50.0 mm. Its sound was extremely loud.
driven by Jean-Pierre Jaussaud, Bob Wollek and José Dolhem.
