I finally worked out the last kinks in the vehicle system, it's now possible to park the car anywhere, and its position is saved when leaving/re-entering the map and when loading a saved game. Plus, sound effects and car crashes.
You can also see the follower system (I opted for semi-random movement instead of a classic caterpillar script, I think that fits the carrots' character much better), randomized weather, and a brief glimpse of the cellphone UI. Needless to say, nothing is really finished or polished yet.