When Mercedes-Benz introduced the W140 Sedan, AMG began their meticulous tuning process to create a range of high performance engines available to supply customer orders and for limited numbers for the Japanese market. These engines included the M119 E 60, a 6.0L V8 with 374hp and 428 lb⋅ft to modify variants such as the S 500 AMG 6.0 and CL 500 AMG 6.0, built from 1994 to 1999. The M120 V12 engine producing 439hp and 460 lb⋅ft was available just for the CL Class coupes. The merger between Mercedes-Benz and AMG started in 1999 when DaimlerChrysler AG started controlling the company to end up owning it in 2005.