Image credit: © conceptcarz.com (Reproduction Or reuse prohibited).

1905 Clement 20/24HP Navigation
Like many other early automotive marques, Adolphe Clement built a successful empire building bicycles prior to entering the automotive market. He also owned the Dunlop patents in France and built pneumatic tires. He continued to diversify, beginning to build automobiles in 1899, taking an interest in the existing Gladiator concern. The first engine-powered vehicles were rear-engined tricycles and quadricycles made at the Gladiator works in Levallois-sur-Seine before Clément began building a conventional front-engined light car around 1901. Their early cars were powered by Aster, Panhard, and DeDion engines.
Within a short period of time, Clement et Gladiator was mass producing vehicles, claiming to have an annual capacity of 1,200 cars by January 1903. In October of that year, Adolphe Clement broke his connection with the company and set up a new factory in Levallois-Perret. Unable to call the cars he built 'Clements', he adopted the trade name 'Bayard' after a statue of the legendary medieval French hero 'le chevalier sans peur et sans reproche' that stood in front of his branch factory in Mézières in the Ardennes region and officially changed his name to Clément-Bayard. He also formed a joint venture with the Earl of Shrewsbury and Talbot to assemble Clément-Bayard cars in London, where they were known as 'Clément-Talbots'. They later became known as 'Talbot.'
The company was a pioneer of vertical integration, with little reliance on outside suppliers. The bodies were built in coachworks near the Levallois factory, and the casting and rough machining work were carried out at Mézières.
The 1904 Bayard models were introduced in the autumn of 1903. At this time, the Levallois-Perret tory employed roughly 1,600 men who built around 1,200 cars annually.
This particular example is a 1905 Clement-Bayard 4-cylinder Touring Car with 20/24 horsepower. It is powered by a T-head engine that displaces 264 cubic inches and is mated to a four-speed manual transmission. It wears an original supply plaque from Bowman Automobile Company of New York and is believed to have been originally sold through Sidney B. Bowman's dealership in New York City. On its dashboard is an original 'Automobile Club of America' badge.
The car surfaced in the 1940s and at that time, was in remarkable original and complete condition. Its discovery was by Henry C. Wing Jr. of Greenfield, Massachusetts. Henry Wing was responsible for a sympathetic refurbishment in the late 1950s and, after that, used it regularly.
The car came into the care of its present owners in the mid-1980s. Since then, it has been shown at numerous events, including the Pebble Beach Concours d'Elegance, where it achieved a Second in Class place.By Daniel Vaughan | Oct 2015
Within a short period of time, Clement et Gladiator was mass producing vehicles, claiming to have an annual capacity of 1,200 cars by January 1903. In October of that year, Adolphe Clement broke his connection with the company and set up a new factory in Levallois-Perret. Unable to call the cars he built 'Clements', he adopted the trade name 'Bayard' after a statue of the legendary medieval French hero 'le chevalier sans peur et sans reproche' that stood in front of his branch factory in Mézières in the Ardennes region and officially changed his name to Clément-Bayard. He also formed a joint venture with the Earl of Shrewsbury and Talbot to assemble Clément-Bayard cars in London, where they were known as 'Clément-Talbots'. They later became known as 'Talbot.'
The company was a pioneer of vertical integration, with little reliance on outside suppliers. The bodies were built in coachworks near the Levallois factory, and the casting and rough machining work were carried out at Mézières.
The 1904 Bayard models were introduced in the autumn of 1903. At this time, the Levallois-Perret tory employed roughly 1,600 men who built around 1,200 cars annually.
This particular example is a 1905 Clement-Bayard 4-cylinder Touring Car with 20/24 horsepower. It is powered by a T-head engine that displaces 264 cubic inches and is mated to a four-speed manual transmission. It wears an original supply plaque from Bowman Automobile Company of New York and is believed to have been originally sold through Sidney B. Bowman's dealership in New York City. On its dashboard is an original 'Automobile Club of America' badge.
The car surfaced in the 1940s and at that time, was in remarkable original and complete condition. Its discovery was by Henry C. Wing Jr. of Greenfield, Massachusetts. Henry Wing was responsible for a sympathetic refurbishment in the late 1950s and, after that, used it regularly.
The car came into the care of its present owners in the mid-1980s. Since then, it has been shown at numerous events, including the Pebble Beach Concours d'Elegance, where it achieved a Second in Class place.By Daniel Vaughan | Oct 2015
2024 Bonhams : The Quail Auction
Pre-Auction Estimates :
USD $125,000-USD $175,000
Sale Price :
USD $145,600
2015 Bonhams Quail Lodge Auction
Pre-Auction Estimates :
USD $250,000-USD $325,000
Lot was not sold
Recent Sales of the Clement 20/24HP
(Data based on Model Year 1905 sales)
1905 Clement-Bayard 4 Cylinder 20/24HP Touring Car Chassis#: 5451 Sold for USD$145,600 2024 Bonhams : The Quail Auction | ![]() ![]() |
Clement 20/24HPs That Failed To Sell At Auction
1905 Clement 20/24HP's that have appeared at auction but did not sell.
Vehicle | Chassis | Event | High Bid | Est. Low | Est. High |
---|---|---|---|---|---|
1905 CLEMENT-BAYARD 4 CYLINDER 20/24HP TOURING CAR | 5451 | 2015 Bonhams Quail Lodge Auction | $250,000 | $325,000 |
Vehicles With Comparable Market Values
Similar sales to the $145,600 range.
1970 Ferrari 365 GT 2+2 Chassis#:13471 Sold for $145,600 2025 Gooding & Company : Amelia Island | |
1960 Porsche 356 B Roadster Chassis#:87690 Sold for $145,600 2025 Gooding & Company : Amelia Island | |
1909 Pierce-Arrow Model 36-UU Runabout Chassis#:UU149 Sold for $145,600 2025 RM Sothebys : ModaMiami | |
1938 Lincoln-Zephyr Coupe Chassis#:H46290 Sold for $145,600 2025 Broad Arrow Auctions : Academy of Art University Collection | ![]() ![]() |
1970 Citroën DS 21 Décapotable Chassis#:00FB1892 Sold for $145,621 2025 RM Sothebys : Paris | |
1967 Volkswagen Type 2 '21-Window' De Luxe Sunroof Microbus Chassis#:257052732 Sold for $145,600 2025 RM Sothebys : The Arizona Auction | |
1955 Jaguar XK 140 MC 3.4 Roadster Chassis#:S 811267 Sold for $145,600 2025 RM Sothebys : The Arizona Auction | |
1999 Shelby Series 1 Convertible Chassis#:5cxsa1813xl000037 Sold for $145,750 2025 Mecum : Kissimmee | |
1963 Chevrolet Corvette Split Window Coupe Chassis#:3087s118775 Sold for $145,750 2025 Mecum : Kissimmee | |
1956 CHEVROLET BEL AIR CUSTOM COUPE Chassis#:AZ398557 Sold for $145,200 2025 Barrett-Jackson : Scottsdale | |
1958 CHEVROLET IMPALA CONVERTIBLE Chassis#:F58L193461 Sold for $145,200 2025 Barrett-Jackson : Scottsdale | |
2023 CHEVROLET CORVETTE Z06 70TH ANNIVERSARY EDITION Chassis#:1G1YF2D31P5700309 Sold for $145,200 2025 Barrett-Jackson : Scottsdale | |
1972 CHEVROLET K5 BLAZER CUSTOM SUV Chassis#:CKS182S140776 Sold for $145,200 2024 Barrett-Jackson : Scottsdale Fall | |
1998 FERRARI 550 MARANELLO Chassis#:ZFFZR49AXW0112802 Sold for $145,200 2024 Barrett-Jackson : Scottsdale Fall | |
1934 Packard 1104 Super Eight Coupe Roadster Chassis#:759-129 Sold for $145,750 2024 RM Sothebys : Hershey | ![]() ![]() |
2004 Porsche 996.2 GT2 Chassis#:WP0ZZZ99Z4S695076 Sold for $146,721 2024 Bonhams : The Zoute Sale | |
1961 Jaguar E-Type Series 1 3.8-litre 'Flat Floor' Roadster Chassis#:875247 Sold for $146,721 2024 Bonhams : The Zoute Sale | |
2016 Porsche Cayman GT4 Coupe Chassis#:WP0AC2A86GK192311 Sold for $145,600 2024 Worldwide Auctioneers : Auburn Auction | |
1905 Clement-Bayard 4 Cylinder 20/24HP Touring Car Chassis#:5451 Sold for $145,600 2024 Bonhams : The Quail Auction | ![]() ![]() |
1983 Mercedes-Benz 500 SL 'AMG' Chassis#:WDB10704612003569 Sold for $145,600 2024 Bonhams : The Quail Auction |
1905 Clement 20/24HP
• Additional valuation insight and sales data• History
• Specifications
• Image gallery