The CGS was fitted with a 700x80 beaded-edge tyre.
The CGSS was fitted with a 27x4 (400-19) crossply tyre.
Amilcar upgraded its CC/CS models as the battle for supremacy in lightweight sports and racecars heated up. The CGS was a bigger, and more powerful car, with a more rigid chassis and better brakes. The CGS was a lowered chassis version of the CGS, with more power and a supercharger option. Very popular!