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

Ready to use right out of the box, this little HUD is lightweight and compact. Very easy to install, cables included. Only the obd2 connector needs to be connected. If you don't just want a GPS, then just a micro USB cable. What also goes with it. After you set up your vehicle, edit the settings to match your vehicle's displacement for fuel. Not sure how accurate that is. But I just installed it and changed the settings. There is a start delay, so take your time. It turns on by itself. I recommend it based on my first impression. Time will tell how accurate/robust it is.