A rear suspension for motor vehicles comprising two longitudinal arms carrying the rear wheels of the motor vehicle at their rear ends, compression springs and a subframe. The front ends of the longitudinal arms are articulated to the subframe which is fixed to the body of the vehicle. The compression springs are interposed between each arm and the subframe so that the whole suspension can be assembled on the sub-frame before the latter is mounted on to the body. The subframe includes two sheet-metal box-section lateral supports provided with attachments for connecting the subframe to the body and for the articulation of the longitudinal arms. A sheet-metal cross member is rigidly connected at its ends to the two lateral supports. Each compression spring is interposed between and connected to a respective lateral support of the sub-frame. A bracket is rigidly connected to the respective longitudinal arm on an axis parallel to the longitudinal plane of symmetry of the motor vehicle and is substantially horizontal. The sub-frame cross member has a tubular configuration having an axis arranged in front of the axis of articulation of the longitudinal arm. The attachments which connect the subframe to the body include for each lateral support a first attachment provided on the front end of the lateral support for connection to the body of the motor vehicle and a second attachment connected to the lateral support outside of the lateral support on the axis of the tubular cross member.

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