1) Fifty five tons of metal armour, 750 horses of power, a huuuuge big gun and about a grintillion gallons to the mile:

2)  Sixteen and a half tons, less horses full of power, slightly less huuuuge big gun, but faster and nippier:

3) A generic "Armoured Personnel Carrier" of statistics unknown. Possibly something like this:

4)Â A four-wheeled-death-trap-Rik-Mayall-and-Ozzy-Osbourne-maiming device:

The connection is that I get to drive all four of these one day of my choosing this year! I was given a "Driving Experience" for Christmas from some very thoughtful people. I'm looking forward to it tremendously, with the possible exception of item 4 which I might well bottle out of on the grounds that I treasure my brain and would rather not see it squidged out of my ears or nose.
Thank you Claire and Jeremy - it's going to be a most excellent day out!