Review on 🚗 iKiKin M7 Dual Mode Car Head Up Display - OBD2 HUD GPS Speedometer for All Cars and Trucks by Doug Nelson

We bought a used car for my daughter and the speedometer on the dash was off by several miles an hour. I bought this car head up display and have my fingers crossed that it works. I hooked it up to the computer diagnostic port and took it for a test drive. So far it works great. It's a lot better than making her look at your phone to tell her how fast she's going. I ended up using velcro instead of the included mounting tape in case I needed to adjust it.