No sign of a plummeting PX value on my D3 despite it having been off road. No damage underneath and clean enough to eat off. Poor resale values are more a sign of cars which aren't cared for. Each to their own; I like green lanes and the solitude of the hills and valleys which the RR is extremely well suited to getting me to. That doesn't mean damaging it or leaving it filthy afterwards though in the same way that the van is never put away dirty after we've used it. Always washed, hoovered and everything put back in the right place and it doesn't stop me using it for what it was intended.