This is image is courtesy of the
www.4wdrc.com forum!!
The image seems to disappear at times, so if you go to the X5 section of the forum at the above website and look at the neat wiring thread you will find some photos of a few cars with GTB brushless systems in X5's.
Sure Jimmy won't mind this link, as he has placed links to this website in this reviews, please remove if its an issue though!!