I know you can have the exhaust manifold coated in ceramic shit, you can choose different colours too. But it ain't cheap. Canny mind the name of the company but they might be able to help you ?
Came across this ( not literary ) on gumtree. Rally spec N/A. />http://www.gumtree.com/p/cars-vans-motorbikes/1999-toyota-starlet-rally-car-fwd/1003745605