What is the E46 M3 Competition Package?
The E46 M3 Competition Package, known by the internal designation “ZCP”, was initially offered in December of 2004 as an exclusive option for the North American market. It was then expanded to other markets beginning with September 2005 production. Available only on the M3 coupe, the option package consisted of the following equipment (most of which is derived from that of the limited-production M3 CSL): -Cross-drilled brake rotors (enlarged to 13.7 inches in front) with two-piece compound rotors (aluminum hat and outer portion connected by steel pins) -Steering ratio reduced to 14.5:1 -M Track Mode setting for Dynamic Stability Control (raisesbut does not eliminatethe threshold at which the DSC intervenes) -19-inch cross-spoke alloy wheels (8×19-inch front, 9.