In this paper, a 4D MIMO radar with 360° field of view is presented. After a brief description of the proposed architecture, using three millimeter wave 4D radio detection and ranging (Radar) sensors (Texas Instruments AWR1843), disposed in a equilateral triangular prism shape, this paper presents the first results on the implementation of a real-time and high resolution radar sensor with 360° of field of view. Experimental results obtained in a controlled environment, i.e. inside an anechoic chamber, are presented to validated the proposed concept. Successful target detection is achieved by multi-point point-cloud. The proposed radar architecture may be seen as an opportunity to augment and improve Advanced Driver Assistance Systems (ADAS) and Autonomous Driving Systems (ADS).