Tesla big rig!

inertia said

You can't achieve perpetual motion till you can nuetralize or eliminate "friction", imo

Formula "E" uses regenerative braking.

Click to expand...

Regenerative braking is classified as passive braking. Like an engine brake. They will still need Mechanical brakes, air usually. Just saying... There is loads of energy that can be converted from kinetic to electric, lots of momentum .