The first series Copperwolf bodies are made for the MS miniracer of microraces. These are 60mm long. For this body he used a bauer model for a mould and shorened this one to fit the body of the base.
The second series models are based on a lego model and are scale 1:87 for the smallest remoted controlled cars available.
The model can be orders just as a base or as a complete remote controlled model. He also make them on order to look like your own car.