4-time Formula 1 champion Sebastian Vettel reportedly had to put his speed to the test after the Spanish Grand Prix ... chasing after a group of thieves who made off with his bag.
Vettel -- who finished P11 on Sunday -- was reportedly exiting his Aston Martin in Barcelona on Monday when the robbers grabbed his backpack and made a run for it.
Apparently, Vettel wasn't going down without a fight -- because according to local reports, he hopped on a scooter and used the GPS tracking on his AirPods to hunt down his bag.