OS 21 VZ-B V-Spec T B•MX 12 MAX XXL3 BL M•Reedy 121VR-ST .21 engine Blue (R-series)•Xtec .21 buggy engine 'purple' (R-series)•RB Circuit 10H•MX 12 MAX XXL3 BL H•Xtec .21 GT3 RS engine•Sirio S21 RR STI H•RB TOURING 10 RC M•Picco P7-R Evo4 .21M•Xtec .21 Spec buggy engine•MX 12 MAX XXL3 BL B•Xtec 21 Bottom-end power•MX 12 MAX XXL3 BL spec•Xtec 12 High-end power•Xtec 12BRS Bottom-end power•Xtec 21BRS Bottom-end power•Xtec .21 buggy engine 'blue' (R-series)•Xceed ZX-21 7P DS-4M•Xtec .21 buggy engine 'green' (R-series)