Kacyk : the HDC (Hill Descent Control) on the Land Rover is not such an ingenious invention. It's another foolproof way of doing things (no offense). I can do that on my 2000 Blazer. what the HDC does is, it places the t-case in LO, and gearbox in 1st gear and activates (and controls) the vehicl's ABS brakes.
So if you're an experienced offroader you can do that yourself, I do it all the time when needed on the Blazer. I put the t-case on 4LO, the auto-transmission ghear on 1st and baaarely touch the brakes as and when required which activates the ABS sensors. and you go down sloooowly. just like HDC.
The difference with HDC, is that it's self driving in a way, it allows you to STEP OUT of the vehicle and walk alongside the vehicle while steering it from the outside through the window while its sliding down at 5 km/h. LR had this option as a failsafe technique in case the vehicle rolls over. of course it has to roll over to the right side to be effective, if it rolls over to its left it will crush you

heheheh
XM DUDE : the Brits have a weird way of coming up with solution to very simple problems, have you heard of ACE ? before the LR3 I tested the Land Rover Discovery 2003 (last model before the LR3). every car has body roll specially 4x4s, on the Disco 2003 they installed a system called ACE (Active Cornering Enhancement) and another system called SLS (Sefl Levelling Suspoension. Basically during hard cornering, a lateral suspension pushes the leaning body tip upwards to level the vehicle. I have tested it at high speeds it's VERY effective, but the negative side is, it's tooooo heavy in components for such a small problem. If you add a multi-level adjestment suspension like the one from Rancho or Fabtech with cockpit adjustment control...voila, you dont need all that heavy metal gear.....weird.
Attached piture shows the ACE system components.
SledgeHummer