well having now seen a superstox up close today for the first time and also having bought my son an mi1 tc they are both stated as having s1 composite chassis and trust me its not ust a name covering up something they are NOT CARBON FIBRE they are what they say they are a tough composite chassis so called s1 probably for schumacher1 and if they redesign the composite it will probably be called s2 that said it does look good
