As of today, autonomous driving is an area of research, it is in continuous evolution and most importantly it is not yet completely regulated and standardized. That is, full self-driving cars still cannot circulate without a human supervisor, with some exceptions. Instead of worrying about the full autonomous drive stack, this thesis work aims to enter in such area in a different way by realizing a mountable kit enabling drive-by-wire features. The goal is to create a modular, low-level, hardware and software interface for autonomous and teleoperated driving implementations that can be mounted as an external kit on any vehicle without any substantial or critical alteration, even on commercial ones.