Great watch. Interesting because a few years after this there was the oil crisis that this technology was well placed to shine in. And yet that didn't happen.
Now, 50 years later electric cars are ready, the battery issue is well and truly solved, and yet the naysayers (here in Australia anyway) say we will always need petrol and diesel to run our cars.

Latest research shows by 2026 100% of new car sales will be electric: