Vehicle body and vehicle

The vehicle body comprises a rear floor assembly, a rear bumper, a storage box and a lock assembly, the rear floor assembly is provided with a cavity, the rear bumper is provided with a communication channel communicating the cavity with the outside of the vehicle body, the storage box is arranged in the cavity, and at least part of the storage box can move out of the cavity through the communication channel. The lock assembly comprises a first locking part and a second locking part, the first locking part is installed on the rear floor assembly, the second locking part is installed on the storage box, and the first locking part can be matched with the second locking part in a locking mode. Therefore, the storage box is arranged in the cavity of the rear floor assembly, the space utilization rate of the rear floor assembly is effectively increased, the integration level and functionality of the rear floor assembly are improved, space is saved for a vehicle cabin, the comfort of a user in the driving process i