Dennis Levitt got his first Tesla, a blue Model S, in 2013, and loved it. "It was so much better than any car I've ever driven,” the 73-year-old self-storage company executive says.

He bought into the brand as well as Elon Musk, Tesla's charismatic chief executive officer, purchasing another Model S the following year and driving the first one across the country. In 2016, he stood in line at a showroom near his suburban Los Angeles home to be one of the first to order two Model 3s — one for himself, the other for his wife.

"I was a total Musk fanboy,” Levitt says.