Catch a vehicle (4)
I believe the answer is:
trap
I believe this is a double definition.
'catch' is the first definition.
(trapping is a kind of catching)
'a vehicle' is the second definition.
(trap is a kind of vehicle)
(Other definitions for trap that I've seen before include "fault" , "Trick" , "two-wheeler" , "Part (anag.)" , "Lure, snare" .)