The SS letters aren't really a font (at least not one that's commercially available). The best bet would be scanning in a good replica of the letters and vectorizing them.
With a little tweaking, you can alter "SS" letters set in Serpentine Sans (an Image Club font) and get pretty good results. The "Freeline" font family from T-26 also has some resemblence to those SuperSport characters.
Thats close enough for me
Customer wants this font to be used in his advertising. I will figure in the cost of the font into my job quote and see what he thinks. If he bickers i will just use Serpentine.
remember the copy police are watching & I believe the ss font is copyrighten by cheverolet used it before to put on impala front glass & I traced it so probably best recomendation. It shouldent take 20 mins to redraw in corel, etc.