I run my mt2 in snow a lot. The only trouble i have had is water getting in the battery/reciever box and frying my reciever and buning out the on/off switch. now i just elastic band a plastic grocery bag over the box. Also i always re tune my engine if there is a durastic change in temperature. and i put a piece of duct tape over the hole in the chassis where the spurs are. I'm not sure what temperatures you drive your mt in but I know when i drive in -20 celcius or lower i tend to break a lot more plastic parts...