Great idea for a physics driving game! My primary complaint is really the camera. It being tied to the car's rotation combined with the (appropriately) janky driving leads to an experience that I would expect to trigger motion sickness in a good few people. The driving controls themselves also were a little awkward at times to me, beyond just the fun silliness of the crane constantly threatening to tip the car over (that part is great). I think the car's friction is maybe a bit low - it make it difficult to come to an actual stop to use the crane, since there's also no brake button, only accelerate and reverse. I think this ends up making things feel more finicky than they need to as you're still getting used to things, since I frequently ended up slowly drifting past the thing I wanted to pick up as I was adjusting the crane. You could even consider having the controls be even more arcadey, with forward and reverse just being forward and backwards on the control stick, and then have neutral on the stick bring the car to a halt more quickly, or a brake button or something.
But the puzzles are a great introduction to the mechanics of the game - none of them are finicky enough to be frustrating, and instead push the fun of the goofy core concept and direct the player pretty well! I particularly enjoyed "helping" the guard open the gate.
There were only a couple points where there wasn't quite enough clarity for me - the shovel being green meant it blended in to the lawn a bit too much for me, and it took me a second to realize what I was looking for. The shovel also promptly clipped out of the map and I lost it. I didn't realize that the pause menu had an option to respawn items so I restarted the game. And then at the end, it wasn't clear to me what the building was that should be destroyed - I didn't realize right away that the checkered texture was the building.
All in all, a great core mechanism that I think has a lot of room for continued exploration!