Pre-Owned 2016 Ski-Doo MXZ® X® Rotax® 800R E-TEC Snowmobile For Sale. The Ski-Doo MXZ X package is a best seller because it is packed with all the capability and performance most trail carvers and bump bashers will ever need, with its REV-XS platform, rMotion rear skid, premium shock package and 4-TEC and E-TEC engine choices. Features May Include...