PWM = Pulse Width Modulation
MPPT = Muppet?
Imagine Arcimoto ships product and you get one and it has a [thin film] solar panel on the Omega door. Then about sunset you roll it into the ditch heading North. You could open the door and recharge your phone while you wait for the tow truck.
Notice the linkage. It has two straight arms and then one with an elbow.