Method for organizing a group of several distinct vehicles (1, 101, 201) into a platoon within which said vehicles are ordered into a line, and within which each vehicle which follows at least one other vehicle of said platoon is capable of automatically adapting its individual driving behaviour as a function of the driving behaviour of one or more vehicles of the platoon that precede it in said line, said method being implemented by a vehicle platoon management system and comprising the following steps: - a step (a) of identification by an identification unit of the management system, during which step the vehicles that are to form the platoon, referred to as "candidate vehicles" (1, 101, 201) are identified, each of said candidate vehicles being provided with at least one axle (5, 105, 205) which comprises at least one tyre (6, 106, 206) providing contact between said candidate vehicle and the ground, - a step (b) of acquisition, by an acquisition module of a characterization unit of the management system, during which step there is acquired, for each candidate vehicle (1, 101, 201), at least one tyre parameter (G6, G106, G206) associated with said at least one tyre (6, 106, 206) providing the contact between said candidate vehicle and the ground, the tyre parameter (G6, G106, G206) being representative of a standardized wet grip class of the at least one tyre (6, 106, 206) concerned, as indicated on the identifying marking of the tyre (6, 106, 206), for example in accordance with European regulation EC-1222/2009, and from the tyre parameter there is obtained a tyre-intrinsic grip index that quantifies the braking grip capacity of the tyre (6, 106, 206) concerned, said grip index (G6, G106, G206) concerned corresponding to a wet grip index, for example the wet grip index defined by European regulation EC-228/2011 if the candidate vehicle (1, 101, 201) is a lorry or a van, said tyre-intrinsic grip index (G6, G106, G206) corresponding to a wet grip index value that is deduced from the wet grip class, - a step (c) of processing, by a scheduling unit of the management system, during which step the tyre-intrinsic grip index (G6, G106, G206) is used as a basis by means of which to determine the rank assigned to the candidate vehicle (1, 101, 201) concerned in the platoon and/or the inter-vehicle distance (D101, D201) that is to separate, at a given speed, the candidate vehicle (101, 201) concerned from the vehicle (1, 101) that immediately precedes it in the platoon. - a step (a) of identification by an identification unit of the management system, during which step the vehicles that are to form the platoon, referred to as "candidate vehicles" (1, 101, 201) are identified, each of said candidate vehicles being provided with at least one axle (5, 105, 205) which comprises at least one tyre (6, 106, 206) providing contact between said candidate vehicle and the ground, - a step (b) of acquisition, by an acquisition module of a characterization unit of the management system, during which step there is acquired, for each candidate vehicle (1, 101, 201), at least one tyre parameter (G6, G106, G206) associated with said at least one tyre (6, 106, 206) providing the contact between said candidate vehicle and the ground, the tyre parameter (G6, G106, G206) being representative of a standardized wet grip class of the at least one tyre (6, 106, 206) concerned, as indicated on the identifying marking of the tyre (6, 106, 206), for example in accordance with European regulation EC-1222/2009, and from the tyre parameter there is obtained a tyre-intrinsic grip index that quantifies the braking grip capacity of the tyre (6, 106, 206) concerned, said grip index (G6, G106, G206) concerned corresponding to a wet grip index, for example the wet grip index defined by European regulation EC-228/2011 if the candidate vehicle (1, 101, 201) is a lorry or a van, said tyre-intrinsic grip index (G6, G106, G206) corresponding to a wet grip index value that is deduced from the wet grip class, - a step (c) of processing, by a scheduling unit of the management system, during which step the tyre-intrinsic grip index (G6, G106, G206) is used as a basis by means of which to determine the rank assigned to the candidate vehicle (1, 101, 201) concerned in the platoon and/or the inter-vehicle distance (D101, D201) that is to separate, at a given speed, the candidate vehicle (101, 201) concerned from the vehicle (1, 101) that immediately precedes it in the platoon.