Since I got my car, I've noticed that the speedo is off. It gets farther and farther off in a linear way the faster I go. When it reads 30, I'm doing 27. At 40, 36. When it says 50, 45. 60 is 54, 70 is 63. 80 is 72 and 90 is 81.
I'm basing the actual figures on 1) those roadside speed monitoring signs and 2) speeds of other drivers on roads I frequently drive.
Does anybody else have this problem, or is my car just a freak?