LEGO Mindstorms Trial Truck

Landon Andrews sent through this great video of a 4x4 truck he's been working on.

I noticed that there aren't really any really great mindstorm 4x4 trial trucks out there.  It seems as though all of the NXT trial trucks out their have 6, or 8 wheel drive (which by the way is still super awesome), or they don't really have good suspension.  So over the past few weeks I've been building my own, and I was just wondering what you think of it.

I love how manoeuvrable it is.  There are some seriously big boulders it manages to get over.  I'd love to see a close-up of how the suspension etc works.  What do other readers think?