1974 - Le Mans Winner / #7 - H. Pescarolo, G.Larrousse
A Le Mans, nel 1974, le ‘MS 670 B’ iscritte erano tre. Henri Pescarolo e Gérard Larrousse, con la vettura n.7, dominarono la corsa vincendo per il secondo anno consecutivo. 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 car was designed by Bernard Boyer and Jean-Louis Caussin. The long tail version, designed specifically for Le Mans, was still called ‘670 B’, ‘B’ being the distinctive letter of all Matras fitted with the Porsche 5-speeds gearbox. The chassis was an aluminium monocoque, with fibreglass body. The engine, whose sound was extremely loud, was a 60° 3-litres V12, with aluminium block and heads, 79.7 mm bore and 50.0 mm stroke. The motor version used in ‘74 at Le Mans was ‘MS 73’, with maximum torque of 320 Nm at 8400 RPM , and maximum power of 450 HP at 10500 rpm. On the Mulsanne straight the car could top 320 kph. Brakes had Girling ventilated discs, all-round; in 1974, the rear brakes were moved inboard. Rims dimensions were 13² x 11² at front and 15² x 15² at rear. The car weighted 693 kg. Three were the ‘670 B’s racing in Le Mans in 1974. Number 7 was driven by Henri Pescarolo and Gérard Larrousse who lead the race from start to finish, winning Le Mans for the third time in a row.
1973 - 3rd Le Mans / #12 - J.P. Jabouille, J.P. Jaussaud
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). It was designed by Bernard Boyer and Jean-Louis Cassin. A ‘B’ was added in 1973 to the ‘670’ name to indicate that a Porsche gearbox was used as opposed to the previously used ZF. The chassis was an Aluminium monocoque, coupled with a fibreglass body to reduce weight by 22 kg. It was powered by a 60°, 3-litres V12 engine, with aluminium block and head, whose bore and stroke were 79.7*50.0 mm. The Matra V12, named ‘MS 73’, was famous for its amazingly loud sound, and reached 480 CV at 10500 RPM with torque peaking at 320 Nm @ 8400 RPM. In Le Mans it raced with six-in-one exhausts, propelling the car to 320 km/h on the Mulsanne straight. Braking was guaranteed by outboard Girling ventilated discs, all-round. Rims dimensions were 13” x 11” at front and 13” x 17” at rear. The car weighted 693 kg. There were three 670 B racing in Le Mans in 1973, with No.12 driven by Jean-Pierre Jaussaud and Jean-Pierre Jabouille. They finished in third position.
1973 - Le Mans Winner / #11 - H. Pescarolo, G.Larrousse
The Matra vs. Ferrari showdown took place on the Circuit de la Sarthe, on June 9th and 10th, 1973, a day which also marked the 50th anniversary of the 24 Hours of Le Mans. The red Ferrari No. 16 driven by Merzario and Pace started from pole and run away in the distance, chased by the blue Matra of Beltoise and Cevert. When, after two hours, the italian leaders developed a fuel piping issue, the Matra No. 10 took their place on the leaderboard, only to be dangerously delayed, and later forced to retire, by tyre issues. At the end of a grueling race, the checquered flag was waved in front of the victorious Matra Simca 670B No.11 of Henry Pescarolo and Gérard Larrousse. The podium was completed by the surviving Ferrari 312 PB n.16 of Merzario and Pace, and finally Matra’s n.12 car of Jabouille and Jaussaud.