[whatevaa]

Are talking about brake-by-wire? Where brakes are controlled by electric only, and if electrics die, no brakes?

These are dangerous. Cars are not maintained to aircraft standards and will never be.

[Tanoc]

With electrically actuated brakes the default power off state is fully engaged. Meaning if the power dies the brakes lock up. That causes it's own issues, obviously, but a sudden deceleration is better than no deceleration at most road speeds.

edit: as formerlyproven below states, the ones currently for sale also have a hydraulic backup.

[dzhiurgis]

Insane take. They will be vastly more reliable than hydraulics.

[formerly_proven]

Brake by wire passenger car brake systems are still hydraulic... and all of them have a mechanical backup. There is not a single car on the market today using electromechanical brakes.

Unless you're talking about electric parking brakes in a thread about ABS.

[dzhiurgis]

Look up cybercab. Their new disassembled manufacturing method cannot support hydraulic lines.

[beAbU]

Just remember to pack a bottle of spare magic smoke incase something leaks!