Join Date: Apr 2008
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Also - which is better to trust? GPS or Speedo? My speedo is usually up about 5mph on the GPS figure (40 speedo, 35 GPS) and it does have me worried sometimes...
It is really difficult to find reliable info on this, but as general rules:
1) Indicated speed is normally higher than actual speed.
2) GPS is normally closer to actual speed than speedo.
I would love to be able to check both my speedo and GPS for accuracy! (Does that make me a geek?)
Currently in martin999's garage:
2011 (11) VW Passat 2.0 TDi SE + options in Island Grey, 2011 (11) Honda CB1000R in Pearl Cool White... oh and a 2004 (54) Secnic II 1.5dCi Dynamique in Ottoman Blue !