Keepers have a quantifiable loss. A loss of efficiency quoted & the possible loss of buying a cheaper car, maybe that vw costore & you paid it because of quoted efficiency or lower emissions.
I doubt such a loss would make a successful claim AND I suggest that any collapse in used vw prices if that occurred here (I know it happened in the US) affects ALL of us, how else will motability recoup any losses?
Anyway as I said before no one should use these ambulance chasing jerks they’re parasites