It was pretty common during ww2 to destroy tanks by throwing molotovs or granades inside. Ofc if you were not able to throw it inside you would aim the engine but that made tanks hard to repair, removing smoking bodies from inside is much less of a problem. Such tanks could be and were used then.
You wouldn't throw a molotov cocktail inside a tank. You would throw it on the engine, or on the treads of tanks (if they were made out of rubber) in order to disable it.
Alcohol in the air in a Russian tank? You must try harder, most probably they were getting out to ask for more molotovs
I don't think you understood what I said.
What I said, really, is wrong. Molotovs were actually mass-produced. For some reading: https://en.wikipedia.org/wiki/Molotov_cocktail#Finland