The Audi A8 had been unleashed in 1994, and was the vastly more advanced successor to the Audi V8, the German automaker's flagship offering. Having initially only been available across the Atlantic, the D2 S8 eventually reached US shores for the 2001 model year. Despite being considerably longer though, the D2 S8 actually tips the scales at an eye-opening 1,124 pounds lighter than a modern RS5 sedan. Yep, a contemporary compact executive sedan weighs significantly more than a vastly longer flagship luxury sedan from 30 years ago. Despite Being Heavy, The RS5 Has Proven Extremely Effective2027 Audi RS5.