Detailing.

The video uses a common "before and after" format with visually appealing transformations of a car's interior and engine bay, which is highly engaging for car enthusiasts and those interested in detailing services. The use of a clear call to action at the end encourages viewer interaction.

The video showcases a car detailing service by showing before and after shots of various parts of the car, including the engine bay, interior, and pedals. The creator asks viewers to comment on which transformation they like best.