A warm-up session was a short practice held on race day. Teams used it to check car setup one final time. It allowed adjustments before the main event. Drivers tested tire choices and balance. For example, a team might confirm brake performance during this session. Modern Formula 1 no longer includes it regularly. However, the concept remains important historically. The session helped teams feel fully prepared. Final tweaks could improve confidence. It acted as a last rehearsal before racing.