Most vehicles can move up to 12" in the Movement phase. This is relatively slow, but it represents a cross-country speed rather than moving flat out. However, most vehicles will want to move even more slowly in order to use their weapons (see later). Most vehicles can only move in the Movement phase, but some can move in both the Movement phase and the Assault phase, just as troops can.
Vehicles can turn any number of times as they move, just like any other model. Vehicles turn by pivoting on the spot, rather than 'wheeling' around. Turns do not cost any of the vehicle's move but once the vehicle's move is finished, they can only make turns as described in the Shooting phase to bring weapons to bear, and then may only do so if they have not moved in the Movement phase. A vehicle may combine forward and reverse movement in the same turn, providing it does not exceed its maximum move.
Designer's Note: Some players have been interpreting the Free Turns rule to allow their transports to make further turns after disembarking troops. The wording has been tightened up to make sure this cannot happen.