Aha, found another answer.

Whereas the MotoGP M4 draws its water from a manually filled tank in the boot, however, BMW's latest water-cooled prototype is fitted with a water recovery system that constantly tops itself up with condensed water from the air conditioning system.

Funny, my brother and I were discussing water injection, and we suggested the idea of using water from the AC system. Thought I'd research it to figure out if anyone had thought of it, and... tada!

Aha, here is what I believe is the true answer.

Whereas the MotoGP M4 draws its water from a manually filled tank in the boot, however, BMW's latest water-cooled prototype is fitted with a water recovery system that constantly tops itself up with condensed water from the air conditioning system.

Funny, my brother and I were discussing water injection, and we suggested the idea of using water from the AC system. Thought I'd research it to figure out if anyone had thought of it, and... tada!

Aha, found another answer.

Whereas the MotoGP M4 draws its water from a manually filled tank in the boot, however, BMW's latest water-cooled prototype is fitted with a water recovery system that constantly tops itself up with condensed water from the air conditioning system.

Funny, my brother and I were discussing water injection, and we suggested the idea. Thought I'd research it to figure out if anyone had thought of it, and... tada!

Aha, found another answer.

Whereas the MotoGP M4 draws its water from a manually filled tank in the boot, however, BMW's latest water-cooled prototype is fitted with a water recovery system that constantly tops itself up with condensed water from the air conditioning system.

Funny, my brother and I were discussing water injection, and we suggested the idea of using water from the AC system. Thought I'd research it to figure out if anyone had thought of it, and... tada!