No, sir. Batteries and capacitors are different tech.
Also, for any given quantity of energy, a capacitor will always be much bigger, and heavier, than a battery.
Nobody is talking tech, and if you read my post, you will see I said "batteries are big capacitors".
So, yeah, they're different tech, the operating principle is the same, both are ways to store energy in form of an electric field.
I agree with your words. But Tesla car is a good electric car at an affordable price.