This is what Joel uses as a portable relish tray at his parties.
The strong, lightweight, four-sided “tilt and lift” tray measures 0.18m3 and has a 450kg payload capacity. The HP450K1 provides unbeatable traction and manoeuvrability over all types of terrain and sloping surfaces up to 25° when moving forward on an uphill gradient. Very popular for carrying heavy loads in confined spaces and inaccessible work areas, the HP450K1 has the carrying capacity of several men.
It’s AUD $5,670 and runs on standard unleaded.
Product Page [Honda via Red Ferret]
You know what else has the carrying capacity of several men? One man and a wheelbarrow. I guess if you’re moving landscaping stone around this could be useful, but a riding lawnmower and a tow behind cart can do roughly the same thing at higher speeds and less cost.
I saw one of these being used by people in the Columbia River Gorge in Oregon using it to haul rocks up the mountain rebuilding hiking trails.
Seen these things (but real old and made in Switzerland) used by farmers to move stuff around their farms. Due to the mountains their farms are all at 45° from horizontal. I guess the same applies to Japan hence the Honda version.