its like a enginear vehicle, it builds and repairs very fast and can demine the way, aslo can ram walls to crush them(at very high speed)
looks decent (needs more personality, but overall is good), but if this is done for hopes of being in game i think the idea has been shot down a few times.
i would like to friendly suggest add more dimensions to the snow plow, it looks like a smiling moon currently, perhaps some plow teeth like this? http://members.home.nl/rhsluik/foto's/06-06-2005_cat_shovel_groot.jpg i am seeing the style you want to accomplish, but some more work is required in my opinion you are on the correct track!