On 16 July 1900, Lenoir received an award from the ACF (Automobile Club de France). It was a vermeil plate with the inscription, "In recognition of his great merits as an inventor of the gas engine and builder of the first car in the world."
Étienne Lenoir died in La Varenne-Sainte-Hilaire on 4 August, 1900.
Next year he received a patent for "an air motor expanded by gas combustion" from Conservatoire national des arts et métiers, no. N.43624.
In 2 years, 143 engines were sold in Paris, and production of Lenoir Gas Engines had begun.
- Weeks, Lyman Horace (1904). Automobile Biographies: An Account of the Lives and the Work of Those who Have Been Identified with the Invention and Development of Self-propelled Vehicles on the Common Roads ... Monograph Press.
- Taylor, Michael J.H. (1983). Milestones of Flight. ISBN 9780710602589.
- Wise, David Burgess, "Lenoir: The Motoring Pioneer" in Ward, Ian, executive editor. The World of Automobiles (London: Orbis Publishing, 1974), p. 1182.
- Georgano, G.N. Cars: Early and Vintage 1886–1930 (London: Grange-Universal, 1990), p. 9.
- "The Motor Museum in Miniature". www.themotormuseuminminiature.co.uk. Retrieved 2021-04-23.