The refrigerated car of Haoyue Group is in the shape of a cuboid, with an outside length of 3.6 meters, a width of 2.4 meters, and a height of 2 meters. If the wall thickness of the car is 0.2 meters, what is the volume of the refrigerated car in cubic meters?
皓月集团的冷藏车厢是长方体形，外面长3.6米，宽2.4米，高2米，如果车厢的壁厚0.2米，则这个冷藏车厢的容积为多少立方米？
<gadget id="calculator">3.2 * 2 * 2</gadget>
<output>12.8</output>

<result>12.8</result>