Thread: Track day tires
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      04-25-2011, 06:41 AM   #22
1Mer
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United Kingdom
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Drives: 1 Series M Coupe
Join Date: Jan 2011
Location: England

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Quote:
Originally Posted by hwelvaar View Post
Can someone with a 1M delivered, and with portable sat nav with speed indication, please compare the dashoard speed reading with the GPS speed reading, and report ?

Thanks !
If you compare almost any cars' Speedo with a GPS then you'll see the same thing. There was a similar discussion on the 155mph speed limiter here...

http://www.1addicts.com/forums/showt...511414&page=13
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