BMW M Laptimer App.
Experience driving pleasure down to tenths of a second and m/s²: "The BMW M Laptimer" app is the ultimate tool for race track data analysis, including automatic calculation of lap times. The app records sensor data directly from your BMW, and uses these values to help you analyse your driving style. This allows you to increase precision and dexterity and, in turn, improve your lap times. You can also record your journeys off the race track, such as road trips with your racing community.