Here's an article about the oldest still-running steam powered car (from 1884) for sale in 2007....
World's oldest car for sale - CNN
And here's the answer to: "What is the oldest car manufacturer?"
Answer = Peugeot in 1882.
Peugeot started as a coffee mil company in 1810, and car manufacturer in 1882 (Peugeot - Wikipedia, the free encyclopedia
Tatra reportedly started in 1850, and its car production in 1897 named the President (Tatra (company) - Wikipedia, the free encyclopedia
While Mercedes was designed by a Czech-Hungarian German called Emil Jelinek in 1901 under the name Daimler (Mercedes-Benz - Wikipedia, the free encyclopedia
) and (Emil Jellinek - Wikipedia, the free encyclopedia
Skoda goes back to 1895, with "automobiles" manufacturing starting around "1905" (History
Whereas Ford did not start as a company until 1903.
"Steam-powered car is made by De Dion, Bouton & Trépardoux of France in 1884 and is most commonly known as the La Marquise. It is the first car invented but when we are talking about manufacturing it is the Fords company leaded by the founder Henry Ford."
The Ford Motor Company was not the oldest manufacturer.. The only thing that Henry Ford brought to the table was the invention of Mass Production via the assembly line, which simply made cars more affordable.
The oldest American car company is actually Buick which was founded in 1899 as a car manufacturer. Ford Motor Company was not started until June 1903, followed by Cadillac in August 1903. Henry Ford initially started Detroit Automobile Company in August 1899, but later dissolved it in January 1901. In Oct 1901, he started Henry Ford Motor Company, but left in 1902, causing the company to be restructured into Cadillac in August 1903.
Prior to its dissolution of the brand name in 2004, Oldsmobile was the oldest American car manufacturer starting bussiness to make cars in 1897.
Thus the oldest, still producing, car manufacturer in the world is Mercedes Benz.
Mercedes Benz was founded in 1881 and patented thier first car in 1886. But it was not until 1901 that they actually marketed a vehicle and it was not until 1926 that the Mercedes Benz brand name was established.