My guess is it's the yellow 11-seater Land Rover known as "Lollipop" -- which is a bit surprising, given that Richard wrote in As You Do that Mindy would sooner get rid of him before getting rid of it.
I believe Jeremy's already reviewed it for the Mag. If anything, he'll be driving it again for the show (if it makes it on), and we'll see James in something else.
As far as I can tell, he's been practising by repeating the same article about his Mustang over and over again. Hopefully he'll feel confident enough now to try another subject.
I've got a soft spot for an old 80's-era BMW Paris/Dakar replica, from the days when they actually looked like dirt-bikes and not the giant insectoid monsters the new GSs have become.