Why it worked
The video uses a common "cute animals doing human things" trope combined with a relatable "sibling rivalry" dynamic. The visual contrast between the candy car and the brick car, along with the dogs' expressive animations, likely contributed to its shareability.
Summary
The video features two dogs, a chihuahua and a husky, each with a car shaped like a teddy bear. The chihuahua's car is made of candy, while the husky's is made of bricks. They race, and afterwards, the husky asks his "dad" for a candy car because his brick car is too slow, but is told he needs more followers first.