Albert Lemaître's Peugeot was judged to be the winner of the Paris–Rouen 'Competition for Horeseless Carriages' (Concours des Voitures sans Chevaux).

Angèle then remarried Numa Joseph Edouard "Petit" Sasias (1882–1927), a Fonctionnaire aux Affaires Etrangères, ex-Secrétaire à la Présidence du Conseil, with whom she had one son.

Jeanne became divorced from Fernand Charron, a racing driver and manager of the plant at Levallois-Perret, subsequently living alone.

[1][4] The Domaine du Bois d'Aucourt in Pierrefonds was originally a 17th-century hunting lodge of the 'Sun King' Louis XIV, which had been upgraded circa 1822.

Located 1.5 kilometres (0.93 mi) west of both the Château de Pierrefonds and his own birthplace on the rue du Bourg, Clément bought the property around 1904 and employed architect Edward Redont to renovate and remodel it.

[1][11][12] On achieving business success, he used the Latinate format of his name ('Gustavus Adolphus'), and he received permission from the Conseil d'État in 1909 to change his surname to 'Clément-Bayard'.

In 1913, he was elected as mayor of Pierrefonds and, on taking office, he ceded control of the Clément-Bayard company in 1914 to his son Maurice, who was passionate about aviation.

In September 1879, Clément built an iron smelter at Tulle, in the Limousin, where there was a good supply of water power, but he did not have sufficient financing to make it viable.

[13] The Gladiator Cycle Company, a French bicycle manufacturer, was founded by Alexandre Darracq and Paul Aucoq in 1891 at Le Pré-Saint-Gervais in northeast Paris.

[6] In 1896, Clément (who held the extremely profitable manufacturing rights for Dunlop tyres in France) joined with a syndicate led by Dunlop's founder Harvey Du Cros to buy out the Gladiator Cycle Company, and they merged it into a major bicycle manufacturing conglomerate of Clément, Gladiator, and Humber & Co Limited, valued at 22 million francs (circa €60–80 million Euro in 2006).[a].

A leading international manufacturer during the 1950s,1960s and 1970s, it was associated with racing cyclists such as Eddy Merckx, Jacques Anquetil, Felice Gimondi, and Ole Ritter.

[6] Gladiators were imported into England by the Motor Power Company, which was co-owned by S. F. Edge and Harvey du Cros, founder of Dunlop.

[14] After 1903, the Clément-Gladiator name continued to be used on the shaft-drive cars made at the Pre-Saint-Gervais factory, whilst chain-driven vehicles were marketed as Gladiators.

[6] Clément-Gladiator was divided in 1903 – Charles Chetwynd-Talbot founded the English arm Clément-Talbot Ltd, while Clément formed Clément-Bayard on a former military site at Mézières (now Charleville-Mézières).

[20] In 1922, the Clément-Bayard company was sold to André Citroën, in whom Clément also invested financially, and the factory at Levallois-Perret was the centre of 2CV manufacturing for the next 40 years.

It was designed by airship pioneer Commandant Arthur Krebs, of Panhard,[21] and used a tubular chassis, centre-pivot steering, near-horizontal 3.5 hp (2.6 kW) rear-mounted engine with automatic inlet valve and hot-tube ignition, driving through a constant-mesh gear-train, and final drive by side chains; early models had no reverse gear.

[22][23] Clément was a major shareholder in the company, along with Charles Chetwynd-Talbot, 20th Earl of Shrewsbury (who was chairman), A. Lucas and E. Lamberjack, both of France.

The factory was a high-status operation whose brick workshops used the latest saw-tooth roof line, glazed to maximise natural light.

It was equipped with the most modern machine tools and the reception area was laid out like a miniature palace, marble Ionic columns, gilded frescoes and stained glass windows etched with the Shrewsbury coat of arms.

Count Jules-Albert de Dion reached Rouen 3’30" ahead of Albert Lemaître but as cars were judged on speed, handling and safety characteristics the official winners were Peugeot and Panhard.

[32][33][34] Albert Clément finished 10th at L' Eliminatoires Françaises de la Coupe Internationale, held at the Forest of Argonne on 20 May 1904.

This was an eliminating contest for the French entry into the Coupe Internationale (Gordon Bennett Race), where only three cars were allowed per country.

[32] Rene Hanriot finished tenth in 8 hours 23 minutes 39.6s at the II Eliminatoires Françaises de la Coupe Internationale at the Auvergne on 16 June.

[33] Clément-Bayard entered 3 cars for the inaugural 1906 French Grand Prix at Le Mans where Albert Clément finished third in his 100Hp machine.

[34] At the 1906 Vanderbilt Cup, Clément finished 4th driving a 100 hp (75 kW) Clément-Bayard (France #15) and completing the ten laps averaging 59.0 mph (95.0 km/h).

[1] The company also started working with Alberto Santos-Dumont in 1908 to build his Demoiselle No 19 monoplane that he had designed to compete for the Coupe d'Aviation Ernest Archdeacon prize from the Aéro-Club de France.

The Clément-Bayard No.1 airship was offered to the French government but was too expensive so it was bought by Tsar Nicholas II for the Russian army.

In 1900, Clément-Bayard was one of the leading anti-Dreyfusard industrialists, along with comte Jules-Albert de Dion, who cancelled all advertising in the Dreyfusard newspaper Le Vélo and started a rival daily sports paper, L'Auto-Velo.

The roots of both the Tour de France cycle race and L'Équipe newspaper, result from Clément's hostile anti-Dreyfusard stance.

[2] His tomb is located at the Domaine du Bois d'Aucourt d'Adolphe Clément-Bayard at Pierrefonds, which has been a protected Historic Monument since 2004.