A:Answer The HERO11 Black does have a looping feature, so it could be used as dash cam without needing to fill an entire SD card. As for how much could be recorded, that will be depend on the settings you use. With a 512GB card, you could potentially record more than 12 hours though, and potentially even longer than that. One issue you'd want to look into is how to power the camera for that long, but since the HERO11 Black can use external power, that should be an easy solution.