confirmed, holding the ok button as stated above will get you into "engineering test mode" where there is a digital speed odometer and a digital tachometer and a ton of other stuff.
Pick up an Aeroforce gauge it will show it and many other things.I'm new to the car - just got mine last Thursday (still have plastic on the interior! - need to stop working and get out in the garage). Would a tune be something that could expose this outside of the test mode or are tunes only for engine management type of stuff?
i use to do this with my 04 mach 1. Gives you a bunch of different readings