During the production of the W124 500E and E500 models, Mercedes-Benz did not yet have ownership of AMG. As a result, these high-performance sedans were built solely under the Mercedes-Benz name. Notably, these models boasted distinctive features such as flared fenders, a performance suspension, and a significant collaboration with Porsche in their development. The partnership with Porsche contributed to the outstanding performance and handling characteristics that set these vehicles apart from the standard models in the W124 lineup.