External rearview device, external rearview device kit and vehicle

An external rearview device for a motor vehicle, comprising:

• a base assembly provided for arrangement on the motor vehicle;
• a head assembly configured to be attached to the base assembly;
• rearview means comprising at least one of a camera unit and a reflective element secured within the head assembly;
• a first head assembly with a first rearview means comprising at least one reflective element in form of a mirror glass;
• a second head assembly with a second rearview means comprising at least one reflective element in form of an at least partly translucent mirror glass, and a camera unit being configured to obtain a rearview image through the reflective element;
• and
• a third head assembly with a third rearview means comprising a camera unit configured to obtain a rearview image through an opening,
• wherein the head assembly is configured to be detachable and is selected to be the first, second or third head assembly with the first, second and third head assembly being exchangeable with each other.