The first thought was: immediately abandon any repetition and modernization of existing models. And start doing something from scratch. It should be something that is not adapted for the city, something that is not a pity to break and "scratch". Something rough, angular, hard as a nut or like a cancer shell. Such that you can collect "on your knee" from all the rubbish from the garbage heap. And you can fix it right there on the spot from what is at hand in the "field conditions". A sort of T-34. Any "body kit", any "upgrade" from everything that can be found in a landfill. I was going to focus on asymmetry, but did not have time