OK I know its not a 246, but one of the prettiest slot cars ever produced is the Carrera Dino 206 Spyder. I haven't seen one for ages now, but they do exist and could be classified as an art form in my opinion.
Strombecker also made a Dino 206 back in the 1960's, not as good as the Carrera car, but can be found fairly easily, especially in the USA.