One of the best ways to immobilize a car is to use a wheel clamp. This device is designed to fit around a vehicle's wheel and prevent it from turning. Wheel clamps are usually made of metal or heavy-duty plastic and can be very effective at keeping a car from moving. Another way to immobilize a car is to use tire deflation devices. These devices puncture the tires of a vehicle, making it impossible for the car to move. Tire deflation devices can be hidden in the road or placed on the side of the road in plain sight.