Carmagedon! Battlecars, roll out!

Cars have  snowplows already. Why don't we add more of that, which we ourselves can scavenge, craft, and add onto our vehicles? A standard grille guard may protect the car, but it can cause faster brake wear and lower speed upon impact. The "choo-choo train" grille that pushes things to the sides of a vehicle is a bit more durable, and it results in lower speed reduction. Why don't we add things like a mechanized snow plow? It wouldn't take damage (as long as it runs), could pulverize zombies and fences, but would require fuel to operate. We could also think about adding electric spikes, flamethrowers, hooks, mines, and more!

EDIT: Mecganized snow plow, by that i ment Snow-Blower.