IS YOUR CAR'S SPEEDOMETER REALLY ACCURATE?
The speedometer, or "speedo" for short, is one of the most important features of any car and serves the purpose of giving the driver a good idea of the speed they are travelling in either kilometres per hour or miles per hour or even a combination of the two.
But just how accurate are they? Well, as a matter of fact, they are not that accurate. Speedometers usually portray a slightly slower speed than what you are actually doing with an offset of around 2 - 4 miles per hour.
Many people believe that the reason why this is is that the manufacturer wants you to drive slower and safer, but as it turns out, it's more got to do with the wheel and tyre sizes you have on your car.
Some trim levels have larger wheel sizes which increase your average speed ever so slightly, and if you have a smaller wheel size, there will be a very slight decline in your average speed.
You'll notice that if you have your GPS on while driving that your speedometer on the GPS is slightly slower than that of your car's speedometer, and that is exactly why.
Take a look at the video below by the YouTube channel: Cool Smartphone on the Difference Between Your Car Speedometer And GPS Speed...
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