The Mercedes-Benz S600 Pullman was a 100 cm (39 in) long variant of the W220 S-Class that debuted for the 2001 model year. The S 600 Pullman was a seven passengers model developed by Mercedes and AMG that offered the AMG multi-media system delivering a built in mobile office with Internet connection, rechargable battery and video and broadcast display in addition to a bar, small tables, and a barrier to the front of the vehicle. Initially fitted with Mercedes' M137 engine, which was a 5.8L V12 that generated 362hp, for the 2003 model year, this engine was replaced by the M275, which was a 5.5L twin-turbocharged V12 that featured 493hp sending power through a 5 speed automatic transmission.