Oh but meant to say, check re age. My Disco is not top whack because its old, but 4x4s that are newer than (I think) 2000 plate are more expensive. Not sure if the same would be true of lorries?
My Golf tdi 07 £110
My new 7.5 tonner 1999, well new to me £165 (same as our old 6.5 tonner)
Mums old Daihatsu Fourtrak 1997 still got it just in case of snow.. £220+