tow truck and van

You can chose it. Pull the van to use tow truck, or drive just van or tow truck. Or carry the box and drive. Read first.
Van(2002STAREX)
H-gas
F-gear up
G-gear down
J-brake
Z-hand brake
Trunk
Z-power
X-open and close
Carrying convayer
F-carry the box
Tow truck(LIBERO)
G-gas
F-gear up
H-gear down
J-brake
Z-hand brake
Back of the tow truck
C↑+V↓-up
C↑+V↑-down
X→+Z↑- left
X←+Z↑- right
How to make the tow truck pull the van
first, drive the van go up and park on the tow truck.
And drive the tow truck to get out of under the rail. If you got out. Drive back to the van(use reverse gear) and try to pull.
(Tow truck, van drivertrain is FR)