The invention relates to a method for a string comprising a plurality of vehicles platooning by means of vehicle-to-vehicle (V2V) communication, comprising collecting (S1) from a plurality of sources (111, 1021, 1022, 1023) values (OP1-OP3) of operational parameters related to the operation of a first (1) of the vehicles, characterized by determining (S2) based on the operational parameter values (OP1-OP3) a plurality of values (AP1-AP3) of an acceleration parameter indicative of an acceleration of the first vehicle, and selecting (S3) from the acceleration parameter values (AP1-AP3) an extreme value (AP2) indicative of the lowest acceleration of the first vehicle (1).