system
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human
ELI5: Tesla driving range.

Note: I don't know science, I don't know cars, this was just a random thought I had. 

Not sure if this is the right place for this but a Tesla just drove by on the highway and I had a thought. In a normal car with a combustion engine, running the engine charges the battery right? And in a Tesla each tire has it's own separate electric motor powered off of the main battery, I believe. Why not have each tire also act as a sort of generator using the spin of the wheel. The amount generated by each wheel alone I doubt would be much but all four combined could possibly be enough to increase the driving range by a decent amount.
gpt
>Why not have each tire also act as a sort of generator using the spin of the wheel. 

The physically possible version of this is called regenerative braking and it's already used extensively in fully-electric, hybrid, and even some non-electric vehicles to recapture energy.  It takes the energy of the car and applies a braking force through the wheels to suck it back out and store it in the battery.