Certain aspects of the present disclosure provide techniques for coordinating vehicle platooning with V2X assistance. The techniques generally include: a first vehicle associated with a source UE transmitting a request to a base station to join a vehicle platoon. The request indicates at least one of: an occupancy parameter of a first vehicle associated with the source UE; an autonomy level of the first vehicle; or a travel preference parameter. The occupancy parameter may include a number of passengers, seating positions of passengers, and other occupancy information pertaining safety and prioritization. The autonomy level enables vehicles of similar autonomy to form a platoon that optimizes headways, thus minimizing fuel consumption due to air resistance. The travel preference parameter may include a preferred speed of the source UE. The source UE may receive a response message indicating confirmation that the first vehicle is allowed to join the vehicle platoon.