The open version and later closed (nr 304) came in countless variations. Various wheel types, outside and interior colour combinations were used. As the interior is a separate part, it is easy to apply all sorts of colour variatioins. The first version had a tinplate base, and no suspension. As the model had a run of several years, suspension, applied later, was quite difficult to construct.
When you buy from an external link below, hobbyDB may earn a small commission.