Method for exchanging data between users (1; 2) of a vehicle, including a primary user having a first personal electronic device and a secondary user having a second personal electronic device, the method including a preparatory phase comprising the following steps: 1a) a first email address belonging to the primary user is registered in the first personal electronic device, and a dedicated application is installed on the first personal electronic device; 1b) the application installed on the first personal electronic device connects to cloud computing; 1c) cloud computing assigns a first mobile identifier to the application installed on the first personal electronic device; 1d) the application installed on the first personal electronic device sends data to a remote server including the first email address and the first mobile identifier; 2a) a second email address belonging to the secondary user is registered in the second personal electronic device, and a dedicated application is installed on the second personal electronic device; 2b) the application installed on the second personal electronic device connects to cloud computing; 2c) cloud computing assigns a second mobile identifier to the application installed on the second personal electronic device; 2d) the application installed on the second personal electronic device sends data to the remote server including the second email address and the second mobile identifier; the method further including a transmission phase comprising the following steps: 3a) the application installed on the first personal electronic device sends data to the remote server including the second email address and transfer instructions of information (K3; P10) related to the vehicle; 3b) the remote server sends data to cloud computing including the second mobile identifier and the information (K3; P10) related to the vehicle; 3c) cloud computing sends the information (K3; P10) related to the vehicle to the application installed on the second personal electronic device. 1a) a first email address belonging to the primary user is registered in the first personal electronic device, and a dedicated application is installed on the first personal electronic device; 1b) the application installed on the first personal electronic device connects to cloud computing; 1c) cloud computing assigns a first mobile identifier to the application installed on the first personal electronic device; 1d) the application installed on the first personal electronic device sends data to a remote server including the first email address and the first mobile identifier; 2a) a second email address belonging to the secondary user is registered in the second personal electronic device, and a dedicated application is installed on the second personal electronic device; 2b) the application installed on the second personal electronic device connects to cloud computing; 2c) cloud computing assigns a second mobile identifier to the application installed on the second personal electronic device; 2d) the application installed on the second personal electronic device sends data to the remote server including the second email address and the second mobile identifier; the method further including a transmission phase comprising the following steps: 3a) the application installed on the first personal electronic device sends data to the remote server including the second email address and transfer instructions of information (K3; P10) related to the vehicle; 3b) the remote server sends data to cloud computing including the second mobile identifier and the information (K3; P10) related to the vehicle; 3c) cloud computing sends the information (K3; P10) related to the vehicle to the application installed on the second personal electronic device. 3a) the application installed on the first personal electronic device sends data to the remote server including the second email address and transfer instructions of information (K3; P10) related to the vehicle; 3b) the remote server sends data to cloud computing including the second mobile identifier and the information (K3; P10) related to the vehicle; 3c) cloud computing sends the information (K3; P10) related to the vehicle to the application installed on the second personal electronic device.