- Electric Cars (most visible. Also don't undervalue their unique direct sales channel, which is a huge competitive advantage)
- Batteries/Energy Storage (not just cars - utility scale energy storage, with capacity coming online that will double global output of lithium batteries)
- Solar panels and solar roofs (both residential and commercial, a market with a hockey stick growth curve coming)
- Self-driving AI (head to head with Google on one of the most fundamental changes to transportation our society has seen in a century, and they have the hardware driving around us all the time already, rapidly learning and improving)
Ford, GM, et al are irrelevant and poor comparisons. This is SpaceX for Terran energy and transportation.