La Jamais Contente
Illustration of "La Jamais Contente", first automobile to reach 100 km/h in 1899
Overview
Manufacturer	Compagnie Internationale des transports automobiles électriques
Also called	The Never Satisfied
Production	1899
Powertrain
Engine	Electrical
Dimensions
Length	3.80 m (12.5 ft)[1]
Width	1.56 m (5 ft 1 in)[1]
Height	1.40 m (4 ft 7 in)[1]
Curb weight	1,450 kg (3,200 lb)[1]

La Jamais Contente (English: The Never Contented) was the first road vehicle to go over 100 kilometres per hour (62 mph). It was a Belgian electric vehicle with a light-alloy torpedo-shaped bodywork and batteries. The high position of the driver and the exposed chassis underneath spoiled much of the aerodynamics.^[2] The light alloy, called partinium, is a mixture of aluminium, tungsten and magnesium.^[3]

The land speed record was established on 29 April or 1 May 1899 at Achères, Yvelines near Paris, France. The vehicle had two Postel-Vinay 25 kW motors, each driving the rear axle via a chain, running at 200 V and drawing 124 A each,^[1][4] for about 68 hp total, and was equipped with Michelin tires. The chassis was number 25.

Today, it is on display at the National Car and Tourism Museum in Compiègne.^[5]

Driver

The vehicle was driven by the Belgian driver Camille Jenatzy. Camille was the son of Constant Jenatzy, a manufacturer of rubber products (rubber was still a novelty at the time). Camille had studied as an engineer, with an interest in electric-traction automobiles. He became known for his record-breaking speed runs and was nicknamed Le Diable Rouge ("The Red Devil") for the colour of his beard. He died in 1913, after being shot in a hunting accident.

Motivation

Wishing to carve a place in the then promising Parisian electric carriage market, Jenatzy started a manufacturing plant, which would produce many electric carriages and trucks. He competed fiercely against the carriage-maker Jeantaud in publicity stunts to see which of them made the fastest vehicles. In order to ensure the triumph of his company, Jenatzy built a bullet-shaped prototype, conceived by the carriage-maker Rothschild in partinium (an alloy of laminated aluminum, tungsten and magnesium).

Speed record

Jenatzy reached the speed of 105.882 kilometres per hour (65.792 mph), besting the previous record, held by Count Gaston de Chasseloup-Laubat driving a Jeantaud, who had attained 92.78 kilometres per hour (57.65 mph) on 4 March 1899. After this exploit the gasoline-fuelled combustion engine would increasingly supplant electric technology for the next century.

The Jamais Contente is now on display at the automobile museum in Compiègne, France.