Common Modular Platform

The Common Modular Platform (CMP), also known as EMP1, is a modularcar platform which is jointly developed and used by French car manufacturer PSA, now Stellantis, and Chinese car manufacturer Dongfeng. It debuted in 2018 with the release of the DS 3 Crossback, the platform is mainly used by B-segment (supermini or subcompact) vehicles along with some entry level C-segment vehicles. For larger cars from the C-segment above, PSA uses the Efficient Modular Platform (EMP2).

The CMP offers a high level of modularity with a choice of two track widths, three wheelbase lengths, three rear modules and the capability to offer several wheel diameters, allowing engineers and designers to introduce a broad range of body styles, from hatchbacks and saloons to SUVs. It has been extended for battery-electric vehicles as e-CMP and e-CMP2.