The track 'Milwaukee Mile' and vehicle '2006 Pontiac GTO' are explicitly stated in the video title and description. The best lap time of 1:21.775 is clearly displayed on the in-car HUD as 'Best Lap: 6' and is confirmed by the Lap 6 timer freezing at 1:21.775. The video provides continuous in-car POV footage for the entire duration of the selected lap. Modifications and tire information are detailed in the video description. The session type is identified as a 'track_day' from 'Milwaukee Track Days' in the description. The driver demonstrates consistent and controlled driving, indicating an expert skill level.