This was a birthday present for my friends. Thanks to ubertenorman for the inspiration and GlauG for the head. She's not perfect. i think if I had to do her again, I'd just use a straight Chromia. Ingredients are Chromia, Prowl, TM Megatron for the turbines and a few other bits and pieces. She broke 4 times and the last time I almost cried. Hope he enjoys it.