Speedometer is factory calibrated to read higher than actual speed (about 3-5 kph higher) - which is fine especially as you approach the 'seize your car' speed limits of Ontario.
Hey, I noticed this in my VW Beetle. My Nuvi GPS system always seemed to be 3-4kph lower than the speedometer claimed. When I checked this in my wife's 2008 Grand Caravan, the speed was dead on. Go figure. Is this a VW thing, or a German thing in general?
TSX reads about 3km/h faster than it goes (at 125 / 122).