The CLK55 AMG was a high performance variant of the Second Generation W209 Mercedes-Benz CLK that was introduced for the 2003 model year. Previously, the model series had appeared as the W208 CLK 55 AMG, and like its predecessor, this updated version was offered as a Coupe or Convertible. The second iteration of the CLK 55 was powered by Mercedes-AMG's M113 5.4 engine, which was a handbuilt 5.4L naturally aspirated V8 generating 362hp. This power was sent to the rear wheels via a 5 speed automatic transmission. Production of the CLK55 AMG lasted until 2006, when it was replaced by the Mercedes-Benz CLK63 AMG.