With the arrival of the Z4 M Coupe in 2006, many people and even some auto publications have relabeled the 1999-2002 M Coupe the Z3 M Coupe. This is not technically correct. While based on the Z3, the name from BMW was simply “M Coupe”. Before the M Coupe and Roadster arrived, BMW M models of the time were named according to their series. BMW probably could have named it the MZ or MZ3, but they chose to name it simply "M".