The good news is that day is now. Auto Meter recently released a GPS speedometer interface that can transform any electronic speedometer into a GPS-based speedometer with minimal hassle. This unit ...

So then the issue comes down to finding an electric speedometer. The simplest approach is using an aftermarket unit from companies such as Classic Industries, Auto Meter, Speedhut, or Stewart ...

And this is why a GPS speedometer is not deemed in law to be an acceptable replacement for a factory speedometer. Even if a factory speedo isn’t accurate, its inaccuracy is at least consistent ...

Dear RP, You’re right that GPS is usually more accurate than a speedometer. By law, manufacturers have to make sure that cars’ speedometers don’t underread, and as a result, most of them set ...