i'm running the 1410 motor in a very heavy crt .5 geared for 50-55mph on 3s and the esc will overheat after about 10 minutes, but the motor hasn't gotten over 125F yet. it is an extremely efficient little motor. i can't see any reasons why this little motor can't push an 1/8 buggy or light MT around. it is incredibly torquey and i will be buying another motor for sure once they release it by itself. it should be able to push a rustler to 70mph without breaking a sweat, unlike the vxl motor. this awesome new motor makes twice the power and only 1/3 of the heat that my old vxl makes. the esc is the definitely the weak link in this combo. it is better than the normal sidewinder, but not quite as good as a MM.
i'll be throwing the esc in my old rustler vxl and throwing my MMP in the crt .5.
btw, sorry if my post doesn't make very much sense. i just had a wisdom tooth removed yesterday and i'm a little medicated at the moment