See:http://www.jedsite.info/transport-mike/mike/martian_series/martian-series.html for a list of all the projected variants, few of which entered service. The picture shows one identical to mine, note the full height tilt and if you look carefully, the small dropside at the front of the body to access the spare wheel.
When mine and another were sold off by BCA Shepshed, the auctioneer began the sale with the following: "Gentlemen, here we have an example of the biggest piece of sh*te the armed forces were ever issued with"
In all honesty he was not far wrong, here was a vehicle that could gross 24 tons plus whatever it was towing, yet was powered by what was essentially two bored out Champ engines. The drive to the air compressor was nothing short of comical while the power steering was downright dangerous, the pump capacity being far too low for the ram and with pressure being stored in a pair of hydraulic accumulators which had to be charged with nitrogen. The transfer box was prone to a destructive vibration which was elegantly resolved by placing a 'do not exceed 32mph' notice in the cab, while the entire fleet was withdrawn for a year or so to enable the engineers to re-design the troublesome twin plate clutch. It was this problem that resulted in the 1950s purchase of a further batch of AEC Matadors to fill the gap.
Good points? The chassis was quite robust and fitted with a Scammell type vertical spindle winch on the non recovery variants, the walking beam rear bogie was a better stronger design than the Watford product and the front axle was a centrally pivoted portal design to increase the ground clearance under the rather large diff casing. First low was something like 190:1 giving huge pulling power providing you had the grip.