They don&#x27;t note from what speed and that seems like a basic physics violation to me on several points.<p>1 - the mass of the vehicle doesn&#x27;t change significantly (they claim a 2k lb reduction in cab weight)<p>2- the limiting factor in truck accidents I have seen is tire grip not braking capacity<p>I would love for this to be real, I think it is an idea with great potential and a useful and disruptive use of hybrid technology...but this company sounds like pure vaporbsware to me. They claim typical rigs last 500k miles which seems seriously low to me