What is DECAR? DECAR has been designed to improve your driving experience through “smart”, “social” and “connected” cars. It is both a hardware – fully compatible with all cars after 2001 – and an innovative mobile and web platform. So all you will need is a smartphone and your unique car! DECAR will change the way you communicate with your car and become a guardian angel for both of you because it can see what happens inside your car’s “heart” even before you get an alert!