Its an interesting optimization problem too: is it better to switch more cars to pure EV, or ensure more miles are driven electric even while hauling around a f

Its an interesting optimization problem too: is it better to switch more cars to pure EV, or ensure more miles are driven electric even while hauling around a few gallons of gasoline? If it's cheaper to get PHEV into more hands, and more commutes are driven on battery power, that may be a better result than trying to subsidize the production of BEVs to outcompete them