With the lights on the rev counter, am I right in thinking that the M3 limits the revs to 4k from cold? Good touch if so
I think the orange lights on the rev counter simply give a visual indication of the "ear sex" zone
The redline is variable, it will increase as the engine warms up and the engine/exhaust will be in loud mode until 5500-6000rpm variable has been reached. Once at normal engine temp, a single amber and 2 reds will remain at the top end
SMG models have a shift light which lights up all the lights to indicate a good shift moment, the manual can have this enabled with a reprogram. Evolve charge £50 for this or you can do it free if you have the right cable and software.
Here's the shift lights in action on someone else's manual car: