Smith took his NASCAR racetrack company, Speedway Motorsports, public in 1995, and a large dealership group, Sonic Automotive, public in 1997. He was 95.
For long-haul trucking, Hydron sees long-term potential of hydrogen
Hydron, a new startup formed by a TuSimple veteran, intends to design and manufacture trucks tailor-made for self-driving operations and hydrogen propulsion.