Yes, but have you ever stopped with your eBrake? first, it doesn&#x27;t usually effect all 4 wheels, and second, it isn&#x27;t antilock. If, traveling 60mph your master cylinder or brake lines fail, the E Brake might not do the job. I know the E Brake in my Toyota Tundra wouldn&#x27;t stop me if I were going 60mph.<p>Again, my point was not to say that this was likely to happen, but merely that we should ensure that there is framework for dealing with these kind of scenarios where a car needs to choose. According to the document I shared earlier, 95% of accidents are driver error somehow. Self-driving cars are sure to improve those statistics, but for public acceptance we need to answer the other 5% of accidents too.<p>EDIT: as Saberworks below points out, there is no Emergency Brake in the Tundra, or in fact almost any modern car. I was loosely equating the parking brake with an emergency brake because in many cars there is no &quot;emergency brake&quot;, so the parking brake is your only other choice.