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  1. 75MPH speedometer 90MPH scangauge

    smart Operation and Maintenance
    Oh you guys are gonna love this: - I was going 75MPH for 15 minutes just now, it felt a bit windy so I took my eyes and hands off the road (oh relax; my knee can hold the wheel) while i checked the scangauge. I was traveling at 90MPH the whole time.:think: -is the speedometer broken since...
  2. Speedometer error

    smart General Discussion
    Just wondering if everyone has the same experience.... I finally had a chance to get the GPS in my smart and noticed at 50+ mph or so the speedometer is 3 or 4 mph lower than the reading on the GPS. Even the Scangauge reading is 2 mph higher than the speedo. Am I imagining things? Anybody else?
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