| code | general | wheels | axles | rivet web | compressor engine | 
  | code 1 | yellow, silver trim, black base | 10 x 24 black plastic | domed crimped | no rivet web | no infill | 
  | code 2 | yellow, silver trim, black base | 10 x 24 black plastic | domed rounded | no rivet web | no infill | 
  | code 3 | yellow, silver trim, black base | 10 x 24 grey plastic | domed rounded | no rivet web | no infill | 
  | code 4 | yellow, silver trim, black base | 10 x 24 black plastic | domed rounded | with rivet web | no infill | 
  | code 5 | yellow, silver trim, black base | 10 x 24 black plastic | domed rounded | with rivet web | engine to radiator gap filled | 
  | code 6 | yellow, silver trim, black base | 10 x 24 black plastic | domed rounded | with rivet web | engine to radiator gap filled + flashing above engine | 
  | code 7 | yellow, silver trim, black base | 10 x 36 black plastic | domed rounded | with rivet web | engine to radiator gap filled + flashing above engine | 
  | code 8 | yellow, silver trim, black base | 11 x 45 black plastic | domed rounded | with rivet web | engine to radiator gap filled + flashing above engine | 
  | code 9 | yellow, silver trim, black base | 11.5 x 45 black plastic | domed rounded | with rivet web | engine to radiator gap filled + flashing above engine |