Why it worked
The video likely performed well due to the satisfying visual of a car being detailed, the aspirational nature of a luxury car like a BMW, and the use of popular hashtags that increase discoverability on TikTok.
Summary
The video shows a detailed cleaning process of a dark gray BMW 550i. It begins with a close-up of the car's rear, then moves to cleaning the interior, wheels, and exterior with foam and a pressure washer, and finally shows the car being rinsed.