Buyers were standing in line for the C43 AMG when it was introduced two years ago. Based on the Mercedes-Benz C-Class sedan, the the C43 AMG was a 4.3-liter V8 supersedan. AMG, the performance house that builds Mercedes' championship-winning sports racing cars, converts only 500 production cars per year, so they don't tend to languish in the showrooms. In fact, they have to order the cars well in advance, then hope they can get one. Last year, super sedan enthusiasts were offered a more exclusive waiting line based on the E-Class sedan.Meet the AMG-built E55: bigger, more powerful, more expensive, every bit as refined.Click here to read more