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 slower 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' round. Turns do not cost any of the vehicle's move. A vehicle may combine forward and reverse movement in the same turn providing it does not exceed its maximum move.
Diagram: Vehicle Turning. Shows a vehicle pivoting on the spot to change facing (marked correct with a check mark), contrasted with a vehicle appearing to 'wheel' round in an arc (marked incorrect with an X) — vehicles must pivot on the spot when turning, not wheel.