Do let us know on that 'Colour display for multifunction computer' as it's annoying. Going to place my order tomorrow and still wondering whether I need to tick the box or not? I know it's only £135 quid but I'd rather have it in my pocket or two tanks worth of the black stuff 
I certainly will. At the moment it would appear that standard is a low-quality monochrome matrix display, and the TFT screen is higher resolution but greyscale. To make it colour would appear to be an option according to the current price list.
For such a trivial item I'm not going to worry about it too much. I've ticked it, so will get it regardless. I don't need to pay for it until I collect the car, at which point I'll be checking what's standard and what's not. If it's standard by the time I collect my car, I'll just insist on getting £135 back on top of my trade-in and see what they say!