If all of them are going to be used, it means the 8 Series is actually coming back, and it's bringing along an M8 and a hardcore CS version.
Several months ago, BMW introduced the M4 Competition Sport in Spain as a more track-oriented version of the M4 with extra power, less weight, along with some aero upgrades. Other models could receive the same array of tweaks in the years to come since the Bavarians have filed M1 CS through M8 CS trademarks with the World Intellectual Property Organization (WIPO), thus signaling the return of the the "CS" suffix used in the past for more hardcore models, such as the M3 (E46).
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