I've been dabbling in the idea of switching the theme of this game into a sci fi look, pushing the timeline of the human-evolutionary side of the idea further into the future to emphasize the point of eventual macrobiology moreso than just the themes of modern day corruption and military automation. I really want to make the car a bug-like creature, but that would be a much harder sprite to animate in my crappy flash game--perhaps you can hypothetically one-day upgrade to the bug and only get to use the car for now. But that transcends time and spaCE!!
Here's some sketching of the new theme I did in AfterEffects: