Yeah, I am beginning to think a pro is needed sooner rather than later. Its not a car though, that was just an example. Got an "a" O level GSE in Eng drawing (20 years ago !!) but whilst I can draw that sort of stuff this is way out of my league, Maybe what I need is a few "artists impressions" I suppose to give a design bod to convert to computer image.
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Friend of mine use a few 3D packages
most that I listed above so if you want to see a 3D model of it when you've got your impressions done I could have a word