All vehicles carry things.
a cart.
motercycle
Semi trucks or 18 wheelers
cart
Hearse
A trailer or cattle-liner.
i think your referring to a hearse.
umm a boat?
A horse box or horse trailer.
A car transporter.
The radioactive placard on a vehicle indicates that the vehicle carries some amount or regulated radioactive material.
Vector
You're probably thinking of a hearse.