Car : Renault 6 CV NN 4 CIL
Year : 1925
Engine : 4 cylinders in line
Bore and stroke :58?90 mm
Cylinder capacity : 951 cc
Gears : 3 forward
Brake horse power :-
Maximum speed : 47 mph
Wheelbase : 8 ft 0 ins (2.43 m)
Suspension : front :semi-elliptic leaf- springs ;rear: transverse leaf- springs
The 6 CV started as a 3-seater torpedo in 1922 and was intended to compete with the Citro?n 5 CV. It was an economical model and it featured an important technical innovation. It had the first removable cylinder head which made repair work a much easier task.

As a clever publicity stunt, it was arranged for it to travel, apparently driverless, through the streets of Paris to catch the public’s attention. In 1924 a 4-seater torpedo entered production, which had four wheel brakes.
The advertising launch of the torpedo dwelt upon the car’s qualities of endurance. In 1926, between March 29, and April 6, this car covered 10,000 miles

(16,000 km) on the Miramas circuit in 203 hours, at an average speed of 49 mph, stopping only to refuel. In 1927 it made the first solo crossing of the Sahara. The car was now firmly categorized as being hard-wearing and enduring. The 6 CV NN weighed 2,380 pounds (1,080 kg) and had a maximum speed of 47 mph.

The largest Renault of the 1920s was the 45, with a 6-cylinder engine of 9121 cc capacity. It had servo-assisted brakes, weighed 5,730 pounds (2,600 kg) and had a maximum speed of 84 mph. Its physical power earned it the title ‘sa Majeste la 40 CV’ and it was more than 16 feet 5 inches (5.0 m) in length. The chassis provided a basis for variety of coachwork and many designers used a great deal of imagination over it as custom built cars were than very fashionable in France. Renault, however, were also keen to demonstrate its basic qualities and on May 11, 1925 a 4-seater torpedo version of the 45 cove

red 107 miles (172 km) in one hour on the Parisian circuit of Montlh?ry. This beat the world record of 97.903 mph for six hours. A few days later it averaged 100.456 mph over 12 hours and 87.700 mph over 24 hours.