SAN JOSE, Calif.—Polished and vibrantly colored antique cars of all shapes and sizes lined the streets of San Jose’s History Park. Silicon Valley held its 21st Antique Autos in History Park, the largest annual antique car show in the West, on Sept. 19. The show is hosted by members of the Santa Clara Valley Model T Ford Club. Every year, owners showcase their pre-World War II vehicles. Allan Greenberg, one of the four coordinators of Antique Autos in History Park, said it’s a lot of fun. “People love to see them,” he told NTD News. “Anytime somebody is on the sidewalk, or in another car, they’re always waving or taking pictures, so we love to get them out. It’s a little piece of history that we’re preserving, and we enjoy that part of it.” The requirements are that the vehicles must be from before 1946 and must be period-correct, so …