Playing with Electric forklifts for a living I wish to point out a few things.
The electronics...…..ie speed controllers never give any trouble and AC motors these days are so reliable that I have yet needed to replace one.
Batteries are the things that wear out and second hand value is not of the vehicle, but of the amount of battery life left.
They are not green and more expensive to produce due to the energy it takes to produce them and the copper and other expensive metals used in manufacture without allowing where the recharging energy comes from.
It takes energy to recycle them. ( remember the emissions in smelting and refining copper ect)
Speed controller( throttle petal ) is these days hall effect type units and not the old fashion pots and therefore little to wear out.
The electronics used in the current crop of electric vehicles has been around for years in forklifts.
( ie …...transistor and FET speed controllers have been around since the early 1990s in forklifts and AC motors shortly after that.
The future will have a lot of electric vehicles in it due to
1/ the state of lithium battery development
2/ emissions is making IC engine less reliable and more expensive to produce.
Just one other thing ……….any true life span of a electric vehicle will be decided by the battery and if the manufacturer places built in soft ware or design faults to reduce life...…..the electronic parts are reliable if needed to be.
Quality of the insulation and placement of the wiring also determines life of a unit.

