And its still growing. As Hoffer puts it, we are a long way off from when a vehicle can autonomously operate on a dirt road in a rural area at night during a snowstormLevel 4 vehicles can fully self-drive but give the option for manual override, something Level 5 ... [+] vehicles will skip all together. Waymo and Navya operate and sell Level 4 vehicles in real environments in the US. Of course not! Level 4 vehicles can fully self-drive, but they provide the option for manual override, something Level 5 vehicles will skip all together.
autonomous vehicles are planned to (hopefully not) be economic.
( z0 plan :ARG1 ( z1 economy :ARG1-of ( z2 hopeful ) :domain ( z3 vehicle :ARG1-of ( z4 automate ) ) :polarity - ) )
(z0 / plan-01
    :ARG1 (z1 / economy
              :ARG1-of (z2 / hopeful-03)
              :domain (z3 / vehicle
                          :ARG1-of (z4 / automate-01))
              :polarity -))
autonomous vehicles are planned to ( hopefully not ) be economic .
z3 :ARG1-of z4
z1 :polarity 0
z1 :ARG1-of z2
z0 :ARG1 z1
z1 :domain z3