ok, an odd question guys but here you go...
I was out in the car yesterday for a 'spirited' drive shall we say, and i had my sattelite navigation running at the time (on my pda with a gps aerial and tomtom navigator) i noticed though that when my car speedo said i was doing 70mph, tomtom said i was only doing 62 as i was cruising along. The difference in reading just got larger as i drove faster, by the time i hit 130 (according to the car), tomtom said i was only doing 118. So one of these has to be wrong - the car or sattelite navigation?
I was out in the car yesterday for a 'spirited' drive shall we say, and i had my sattelite navigation running at the time (on my pda with a gps aerial and tomtom navigator) i noticed though that when my car speedo said i was doing 70mph, tomtom said i was only doing 62 as i was cruising along. The difference in reading just got larger as i drove faster, by the time i hit 130 (according to the car), tomtom said i was only doing 118. So one of these has to be wrong - the car or sattelite navigation?