The video clearly shows a HUD lap timer, which was used to determine the lap time and start/end timestamps for Lap 15. The track name 'Road Atlanta' and vehicle 'Momentum Autosports Camaro GTS.R' (Chevrolet) are explicitly stated in the video description. The footage is continuous in-car POV. The driver's actions indicate expert skill in a competitive racing environment. The estimated track length is based on the known length of Road Atlanta.