Method in a communication network for distributing vehicle driving information and system implementing the method

A method for distributing vehicle driving information comprises: receiving from each of different users of vehicles (n-1, n, n+1) information (in-1, in, in+1) regarding the driving by the user as sensed by sensors (sn-1,sn, sn+1) mounted in the vehicle; storing each of the information; and giving access or transmitting to each of several service providers (N-1, N, N+1) a different portion (pn-1,n-1pn-1, N pn-1, N+1' pn, N-1 pn, N'pn, N+1'pn+1, N-1'pn+1,N+1) of the stored information at a selected repetition rate. Each of the service providers (N-1, N, N+1) has obtained an authorization (an-1 an,N,an, N+1) provided voluntarily by each one of the users to access the information in return for providing the user with feedback (fn, N-1, fn,N,fn, N+1) regarding the driving by the user, where each of the information includes information regarding speed and acceleration of the vehicle, and the feedback includes information as to how to lower the fuel consumption.