At some point, the thermal capacity of the cables will approach that of the brake discs of a normal car. They rarely get hot enough to melt, even though they p

At some point, the thermal capacity of the cables will approach that of the brake discs of a normal car. They rarely get hot enough to melt, even though they pretty much absorb the entire braking power. I'd calculate the resistance of copper cables vs car mass and delta v, but I'm too lazy.