Saw these in Homebase.
Looks very like the green ones I used to get made, but a bit smaller (and blacker) . I checked them out in the flesh, and they are pretty tough. With a smaller vehicle now, I reckon they are just the job for Roe and Fallow does/prickets. A big buck might be a squeeze.
Roe trays 1000x550x150
£15
Carcass Tray Small - Roe £14.95 - SHOOTING - SHOOT EQUIPMENT Gamekeepa Feeds and Supplies