Supporting structure for housing vehicle components and/or accessories and vehicle featuring such a supporting structure

A compartment (9) in a boot (2) of a vehicle (1) houses a component and/or accessory assembly (11), wherein a supporting structure (12), connected to the vehicle structure (18) and located beneath a loading surface (3) of the boot (2), has a first portion (14) for supporting at least one battery (29), and a second portion for supporting a spare wheel (31) at least partly surrounding the battery (29); the supporting structure (12) defining at least one compartment (27) (35) accessible from the boot (2) and for housing tools (36) supplied with the vehicle.