This is a stand-to for an incoming competition, one of our most expensive yet.
Later this week we're going to be offering the opportunity to Win £270 Rab Neutrino Pro military down jacket
Visit the thread at that link above and Watch it to be notified as soon as the competition goes live
The M3 capacity is 10m3 for FL12, I think the Foden carries a couple more cubes. The HDT probably refers to the actual mass of the vehicle unladen. You can always google the FL12 and Foden and the info will probably come up.