the status is directional, so it would get a better signal but would hhave to be pointed in the correct direction every time you've moved your truck otherwise it will be useless.
the "wire" type as you call it is this one I assume?
http://www.leisurepower.co.uk/acatalog/Maxview __Omnimax__Omni_directional_Active_UHF_VHF_.ht ml
That is an omni directional antenna, so it will receive a signal from any direction, it will not be as good as the directional (if pointed in correct place) but it will not have to be pointed the correct way every time.
so the directional one is a better antenna as long as it pointed towards the transmitter every time, but the other one is an install and never have to touch it again option.