Noticed that when I use the "speed" on the OBC, and hit the turn signal stalk to bring up the display in the instrument panel, that the 8% (high) error with the speedo is not on the OBC speed reading... Bit of a pain to punch in the readout all the time, but it does give an accurate speed reading! Wondered how they could offer an OBC with mileage, speed, consumption etc etc and use a speedometer that had such a glaring error.