Anyways, time to put the modelling away for today. I've been carving the detail on the 4-1 collector for the exhaust system, but I need to coat it in superglue prior to continuing.
Best I do that outside and in good daylight.
I have decided to leave one side of the collector flat, so that I can glue it to the bodywork. It'll give me an extra point of attachment. Otherwise the exhaust is only held on at the manifold and by a bracket just forward of the back box. That might be a bit wibbly wobbly, so I prefer the belt-and-braces approach.