why not kill 2 birds with one stone and have your national finishing position (new F rating

) as your number which is painted onto the car in a certain fashion, must be black on white background with stencil style templates supplied by the BRCA maybe?, all those without a finishing position cause a problem though, would have to have ridiculously high stick on numbers, like 100+. Noticed someone suggested putting numbers on the wings, problem is wings can and will come off