For anyone that was curious, for my project I decided that I was going to do a retake on the flip lid concept. Although some promising ideas were suggested like the power antenna and the fixed antenna, they weren't able to bring the success I was looking for (as i found out through trying them). The power antenna was not able to flip the car all the way over, only onto its side, even after fiddling with the shape of the antenna. The fixed antenna was only able to reduce the likelihood of the car landing upside down, whereas I needed something I could be more confident in getting the job done. So after all this I realized there was still a significant amount of room for improvement on the original Flip-lid design. I focused on minimizing added weight, maximizing success rate, aesthetic appeal and robustness. Here is the final product.
Hopefully the link works.