Thanks for your reply and interest on our issue.
We'll surely do better next time thanks to your suggestion too :D
Hello, thanks for the comment.
To give just some insights. For the controls we used an "old" Unity asset package thinking that it could make the development process smoother. Little did we know that the main issue than would be "that adjustment we made to make it work for our scope broke, quick let's fix it". I was worried that scripting the whole controller for the vehicle would take away too much time so we choose that route and in the end did not pay too well. The lesson is indeed to trust ourselves more and not be afraid to commit more time to the foundation of the experience. Sorry for the long reply but I like to share what I learn when I'm jammin´ ;)