This is the Wheel Barrow. It is used to detonate bombs by remotely approaching the suspected device. There is a very, very robust camera fitted so the bomb disposal expert can manoeuvre the barrow into position and then fire a small cannon at the device, thus safely neutralising the bomb.
The vehicles either side of the "Barrow" are called Pigs. Don't ask me why, maybe because they are hard to drive. Maybe because anyone who saw them coming said here come those swine's again :-)) If you can't laugh at yourself who can you.