Review on 🚗 Wiiyii P6 Car HUD Head Up Display: Ultimate OBD+GPS Smart Gauge for Unmatched Performance in Every Car by Jason Hayes

My first impression was positive, but the more time I spend with it, the more frustrated it gets. Three concrete examples: There is a fuel consumption setting, but it is essentially useless as it gives the real-time consumption and not the average consumption. One moment you're getting 22mpg and the next (through inertia) 99mpg. What's so good about that? Second, the device has no internal storage at all. Do you want to plan a trip? Good luck because every time you turn off the device, the counter will reset. Finally, I can't figure out how to set up the third display in the "Additional Sensors" section. See video for example. If anyone can provide this information, please answer my question in the Questions and Answers section.