The heating water pipe has a tee and a direct pipe. The tee is a water inlet pipe and the direct pipe is a drainage pipe. The material of the water pipe is nylon rope and rubber. Buick Hideo is the fourth model of Buick brand based on GM's latest global platform after New LaCrosse, New LaCrosse and Angkor. The old Buick Hideo originated from Opel Xinyate and came from GM's global DeltaⅱII II platform.