MX 21 MAX XL9 TQ H•Xtec .21 buggy engine 'blue' (NX8)•Xtec .21 GT3 RS engine•Xtec .21 buggy engine 'purple' (NX8)•Xtec .21 buggy engine 'green' (R-series)•Xceed ZX12 DS4 EM spec•Picco 12 Evo-4 B•Xtec .21 buggy engine 'orange' (R-series)•RB TOURING 10 RC H•RB TOURING 10 RC M•Xtec 21MRS Mid-range power•Xceed ZX12 DS4 EM H•Xtec 21HRS High-end power•Xtec 21 spec•OS 21 VZ-B V-Spec T H•Picco P7-R Evo4 .21H•Xtec 21BRS Bottom-end power•Reedy 121VR-ST .21 engine Blue (R-series)•Picco P7-R Evo4 .21B•Reedy 121VR-ST .21 engine Silver (R-series)