I drive a SsangYong Musso, and the speedometer consistently reads a few miles per hour above my satnav. I have always believed that the satnav would be the most accurate and reliable, but I recently ...

Modern cars surround drivers with digital certainty, yet one of the most basic numbers on the dashboard is quietly biased in ...

It's pretty well established that car speedometers are mildly inaccurate. However, if you're wondering whether GPS is any better, here's what to know.

Do you even look to see if the speedometer works when you buy an old car? When we shop for something built in the 1960s or 1970s, we assume the speedo needle winged off into the night or the cable is ...

Lots of people get in touch with CarsGuide to complain about the accuracy of their car’s speedometer. When you drive an old HiLux ute, as I do, you often wonder just how far from the mark the ...

It was a GPS navigation system that got me thinking about a dedicated speedometer. The downside is the cost and the relatively small speed display in a device meant for route finding and directions.

Q:I operate two vehicles with two different aftermarket GPS systems, each gives me conflicting speed readings in relation to the vehicles' speedometers. Which is more reliable, the factory installed ...

Driving with a broken speedometer in your muscle car has sadly fallen out of fashion. As a tech in the '90s, I'd see vehicles with carefully crafted cheat sheets taped to the dashboard calculating rpm ...