F150 lightning is about 63K for the base model. It was also not available until 2022 (announced in 2021). The tesla cybertruck, 82K base, was first announced in 2019 (not manufactured til 2023).
For it to be cheaper than an average new car in 2019 it would have to be under $37,000. For it to be cheaper than an average new car now it'd have to be under 48.6K
That's a lot of thousands before the electric savings win out.
I mean you could make a game with it and argue it in court but that's expensive af. That's a bigger part of patenting for the big for corps. Whether it'd stand in court or not is less relevant than scaring people off due to costs.