1902 Landeweer (Netherlands) - AllCarIndex

The Landeweer car, built by Harm Landeweer in Martenshoek, Groningen, between 1902 and 1906, was an early experiment in automobile design. Powered by a modest 1.75 hp De Dion Bouton single-cylinder engine, the vehicle was described as a "four-wheeled motorcycle" or quadricycle. The car, weighing approximately 220 kg, featured seat saddles and could accommodate four passengers. The first documented ride took place on August 10, 1904, followed by ten more journeys until August 27, during which Landeweer meticulously recorded data on speed, fuel consumption, distance traveled, and the number of passengers.

The vehicle's performance was modest, with an average speed of 22 km/h and fuel efficiency of 1 liter of gasoline per 25 kilometers. The total weight of the car with four passengers was 452 kg, although it was tested with up to 664 kg. Landeweer used these test rides to compare the car's efficiency with traveling on foot, highlighting the practical potential of his invention.

Following these tests, Landeweer decided to modify the car to seat six passengers. This likely involved fitting a new body with benches, increasing the car's weight to 250 kg. Although the vehicle’s suitability for six passengers was never physically tested, theoretical calculations suggested that it would still be functional in terms of power, speed, and fuel consumption.