The video title and description clearly indicate a 'Lapping Session' at 'Montmagny Speedway' (Autodrome Montmagny). The fastest lap time of '54.7' seconds is explicitly stated in the video description. No in-video HUD lap timer is visible to confirm individual lap times or resets. Therefore, the lap time is sourced from the description. The video is continuous in-car POV footage, meeting the verification criteria. The vehicle is identified as a '2018 Mazda3 2.0' from the title. The track length for Autodrome Montmagny's road course is approximately 1.7 km (1700 meters).