Only In Belgium 4 - Tintin Celebration

The video covers a celebration of Tin Tin's birthplace, featuring props and characters from the series, including the rocket from Destination Moon and the shark-shaped mini submarine from Red Rackham's Treasure. Homemade soapboxes designed like Tin Tin vehicles raced through the city, highlighting the playful spirit of the event. Additionally, a more serious Tin Tin rally took place, showcasing beautiful cars and quirky hairdos.

What kind of rally was being held halfway across town?

What humorous observation was made about the participants with beautiful cars?