Racetrack driving performance optimizer mounts in your cockpit to gather and interpret your performance data, identify your opportunities for improvement and provide real-time audible coaching on the track (requires use of the Garmin Catalyst app on your compatible tablet or smartphone) Patented True Optimal Lap technology splices together your best achievable time into a single video based on lines you drove and can repeat Receive real-time coaching with audio cues heard in your earbuds or car stereo (available in select languages), and see real-time lap data displayed on a red or green gradient background at a glance With purchase of a Vault plan, your optimal and best lap videos from every session are automatically saved and accessible via the Garmin Catalyst app; plus, access friend and leaderboard videos (requires internet connection; Wi-Fi connectivity is recommended) Use the Garmin Catalyst app on your tablet or smartphone to view detailed performance data and compare your sessions with friends (requires internet connection) See how you stack up against other drivers with online leaderboards showing your lap or drag times in the Garmin Catalyst app; sync activities and easily export 1440p HD video with data overlays See how you stack up against other drivers with online leaderboards showing your lap or drag times in the Garmin Catalyst app; sync activities and easily export 1440p HD video with data overlays Drag race timer records your time and distance milestones, such as your 0–60 mph time and 1/8-mile and 1/4 -mile times Compact and unobtrusive all-in-one design with 3" display easily and securely mounts to your windshield