Quote:
Originally Posted by si.w
Did a very unscientific test at the weekend comparing speed as shown on speedo to GPS on phone. GPS showed 70mph when car indicated 75mph. How do I know which is right!?
Has anyone else compared theirs!?
Cheers
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As far as I know GPS never lies... the analogue speedometers often do.
On an AUTOBAHN my Cecil showed a GPS reading of 174 MPH while the needle was off the clock way past the 180 MPH mark.