Mark,
A Ferret is an ideal first vehicle, ignore what these ww2 guys say. They're small, light, fast, armoured, easy to fix, easy to find spares for, they fit in your garage, and they're fairly cheap. You can buy 2 for the price of a jeep! You'll have far more fun in a Ferret than a Pig. Pigs a slow, heavy, have no brakes, big things to store, but you can sleep in the back, so they're not all bad!
Chris