You are all very right and I am indeed, very stupid, don't know what was going through my head when I measured the lip aswell, 6x 15 like every other g60 steel, I'll get onto ordering the tyres, 185-55-15 i take it. Then run a pintstripe in red enamel round the edge with a nifty pinstriping tool I bought a few years back and haven't used. Then I'll post you all a picture and maybe start a thread specifically for my car

Thanks for all the help and tolerance of stupidity.
Fraser