Finished work on new offroad wheels - with greater speed, offroad ability and spikes damaging enemies as a nice addition. Trying to explain "offroad" part within used technological level I achieved a rather funny result - the wheels are covered with metal and wrapped around with rope. I'm not sure how much such tricks actually increases the offroad ability of wooden wheels, but within the game let's think it's "quite a lot".
Due to some features of the new part, or rather, the recently changed way structures damage mobs, I had to try Unity animator layers for the first time - before that, all my animations were replacing each other. I'm not sure if this functionality will be required anywhere else, however, the knowledge is useful.