I sometimes wonder at the people who dream up MoD contracts...
Borrowing my boss's relatively new Landrover at RAF Mount Pleasant whilst my old heap was in for servicing, I noted the words "This vehicle is not to be driven off-road" stencilled across the dashboard. My old wreck, only needed to get me around the aerodrome and back to the DeathStar or down to the TicTOC had no such restriction.
So I queried this with him as the concept of a Landrover which couldn't be used off-road was a new one on me.
"Ah yes. It's the contract we have with the vehicle suppliers. The new ones may not be driven off road until they're at least 2 years (IIRC) old."
"So the folks who have to drive off-road use the battered, unreliable old heaps and those who only need them on base get the new ones?"
"Haven't you got some meeting you need to attend...."