The fact you have been and test driven this model again today shows that you have rushed in to the BMW. If you go for the BMW and your heart really isn't with it then I think that may be a financially poor decision ! I agree that honda have messed up with the release of the car but I have been reading that many cars are now being delivered, the chances are if you hadn't cancelled your order on the blue gt then you would be taking delivery of it very soon.
I have also read that other cars are available immediately if you aren't too bothered about the colour, I would probably have any of the other colours except red. My first preference on this would be the polished metal, then white then black, blue , red.
I think you're suffering impatience without having a car you can tinker with , your car history shows you are quite erratic and impulsive with your car buying (with respect)
I think you actually really want an fk2 but are frustrated.
Did you ask to see what cars are available to drive away on the honda systems ? I'm sure there's some cancelled orders that are waiting to be fulfilled. I've seen a guy talking about how his blue one became available sooner than expected .. That may well have been the one assigned to you !