Review on Upgrade Your Car Experience With ACECAR'S Digital Heads Up Display - Accurate Speedometer, RPM, Water Temperature, And More! by Robert Castro

I was so excited to try this car dashboard HUD, but I am nothing but disappointed.Physically, it has a great design, it is very easy to install, just plug it into the port under the steering column in your car, and it's ready to go! The plastic "mirror" is transparent enough to see thru while also reflecting the projected information well. That's where the good ends.The device itself is difficult to control. The instructions that come with it aren't clear enough but I was able to muddle thru.Big downfall 1: The reflector is motorized. It opens when the car starts and closes when the car is turned off. the angle of the reflector is supposed to be adjustable so that it goes to the best angle every time. I could not get it to move at all, so I had to manually adjust it every time.Big downfall 2: The speed is EXTREMELY inaccurate. Changing between KPH and MPH was easy, after that it falls apart. It reads faster than you are actually going and the problem is exponential, so at 25mph it reads at around 35mph. and at 65mph it reads over 100mph!If it worked accurately I would have loved this device, but unfortunately I will be uninstalling it.