I have Daihatsu Mira 2012 its meter is digital, and I've noticed that its speedo meter is not showing exact speed.
There is difference of 20 to 30 km/h. e.g, When i am on 50 km/h meter is showing 70km/h On motorway car was moving with a speed of 95km/h but meter was showing 135.
Even previous owner replaced speed sensor and software but all in vain.
What could be the issue?