Chuck Spielman grew up around cars because his father had a Chevy dealership in New York. He’s around cars now by choice. They’re choice, all right. Spielman has one of San Diego’s most admired collections, a rotating cast that currently includes a 1923 fire engine, a 1934 Packard, a 1964 Shelby Cobra, a handful of vintage Corvettes and about two-dozen others. They are housed in a private Sorrento Valley museum that also showcases thousands of items of automotive memorabilia: road signs, toy models, photographs, gas pumps, posters, owners manuals, parking meters, racing trophies. “Some people …