According to Wikipedia, originally Archie's car/jalopy was a 1916 Ford Model T. Archie called it Ol Betsy
In one of the later comics, when Archie was asked, he claimed it to be several makes, Hudson, Packard, Pierce Arrow, Chevrolet, Plymouth, etc. Going back to 1926. Because those were all the different types of parts he used in fixing the car.
which had me wondering, what did they use in the Archie comic books? There was the original jalopy (and the actual reason I had to look up the word jalopy when I was a kid first coming across the word) in the earliest comic books, and then story lines changed as they ran out of simple ideas, and the writers became influenced by the increasingly prolific Southern California racing scene
Seems Archie as a comic was started in December 1941, trying to get the Andy Hardy fans to buy comic books, and Archie looked a bit different than the character we know, and the jalopy showed up in 1942
Then a couple hot rods, and some other race cars.
He won this one in a raffle, he only bought one ticket, his friends bought 20 more, all in his name
there was even one digital comic book that brought all the stories with the jalopy together