I think that you’d want to start as a “kit car” company like Local Motors, Factory Five, Superformance, Rossion (Q1), etc.

Kit cars don’t have the same regulations as production cars. The testing for these regulations (crash testing, etc) will cost many millions of dollars to complete.

Looks like at&t fiber

I’ve seen alot Dell and HP laptops that get better speeds on wifi than ethernet because they use modern wifi 6 adapters but 10/100 network ports for some stupid reason