After all your kind words and useful feedbacks, I decided to develop this game further and publish it on mobile stores, maybe even on Steam! Here's a garage screen I'm currently working on.

There will be many vehicles and upgrades such as engine, tires, boosters, turrets?!, and even passive boosters such as gaining fuel from each zombie killed. Also different maps and weather conditions are in my mind.

You can still play the jam version and give feedback or suggest features here: https://ldjam.com/events/ludum-dare/52/shred-a-bunch