Speedo Accuracy

[Vanilla]

Can I confirm something -

Even a car with an electronic speedo overreads. Correct?

 

[PMKeates]

He he, your one of the drivers that'll stick with me & my HGV (which reads accurately on its tachograph) then

You can definitely tell that to be the case. HGVs are always going much faster than the average driver through these speed checks. Few seem to get why though

Can I confirm something -

Even a car with an electronic speedo overreads. Correct?

Not neccessarily. It can be anywhere between 0% and 10% over-read. Most manufacturers seem to build in about 1% minimum (Perhaps for tyres with more tread?), although there may be the odd car that is exactly spot on