Huh, no you forget about cen, megatech, smartech and duratrax is pretty underated also. Xtm is farely new and they are not that under rasted now that all these awesome reviews are out on them. XTM x-terminator- great reviews. it won the big buggy bash by rccar magazine. The mammoth has gotten 4 reviews and all are super positive. I dont even have to say anything about the x-cellerator. All super amazing reviews. And the x-factor. Great review by rcca. XTM maybe a little underrated but they are most definetely not underperforing. I gaurantee tha on the track and probably durability- The mammoth would beat the thunderquake. The x-termiantor would beat the axis. And the x-cellerator would beat the nitro evader st