Young's pride and joy, which he calls LincVolt and which runs on electric batteries and a biodiesel-powered generator, caught fire Nov. 9 and the flames spread to the warehouse, according to Belmont-San Carlos, Calif., Fire Marshal Jim Palisi and a website devoted to the car.
Young had the car converted from gasoline to hybrid power, a transformation captured in a four-part film series.
While the exact cause of the fire is still being probed, it seems "to be an operator error that occurred in an untested part of the charging system," Young wrote in a statement. "We are investigating the components involved with plug-in charging," Young wrote.
The flames severely damaged the car and the 10,000-square-foot warehouse that contained guitars, framed photos, film canisters and crates of musical equipment.
"How do you put a price on that vehicle?" Palisi added. "To me, it's priceless."
Firefighters managed to save at least 70 percent of the building's contents, which included five other classic cars.
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They saved "a lot of archival items were threatened and the fire department did a first-class job protecting them," Young said of the firefighters.
"I love my car," he told the audience.