OK, it’s a little dangerous.
According to a man surnamed Tian (who presumably shot the video), a reckless driver was weaving in and out of traffic in Chongqing before deciding his joyride, however boneheaded, was lacking that je ne sais quoi to really push it over the edge (of logic? normality? decency? unclear). This stunt followed. At Lijiao Bridge, he opened his car door three times and began steering with his body outside the door, for no other reason, it appears, than because sanity bores him.