The dashboard speedometer is configured in 10 MPH increments from 0 up to 40 then jumps to 20 MPH increments after that. Using the dashboard speedometer, the driver gets a different speed when transitioning from 40 to 60 and then back down to 40. The digital heads-up-display gives a consistent change through this speed range. Other speedometers on other models from this manufacturer do not have this dropout around 50 MPH. Changing the 0 to 40 range on the dial would slightly fix this. Since 50 MPH is a very common speed, I think this may eventually result in erroneous signals for the driver. Additionally, the Owner's Manual is illustrated with different speedometers from those which appear on the car.