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Review on πŸš— Enhance Your Driving Experience with AUTOOL Universal Car HUD Head Up Display - GPS Speedometer KMH/MPH, Altitude, and Overspeed Alarm for Any Vehicle by Lawrence Allison

Revainrating 3 out of 5

Bought to add GPS speed to my 79ft Corvette, speed shown is 6mph slower than actual.

I have GPS location on my phone, I have GPS location on my tablet. I have mechanical speed in vehicle tracking. My phone, tablet and car speed is within +/- 0.65 mph of actual speed. The GPS speed device always shows 6 mph slower than my actual speed (based on the average of two other GPS devices and a mechanical speed reading).

Pros
  • Electronics
Cons
  • No instructions