Mercedes-Benz SL55 AMG Video Test Drive Review with Chris Moran. Presented by D&M Motorsports. The Mercedes-Benz SL-Class of two-seat roadsters has been significantly upgraded for 2007. These were wonderful cars before, and they're even more wonderful for 2007. For 2007, all SL models get revised styling, with new front, rear, and side sheetmetal along with new interior decor. The entry-level model, now called the SL550, gets a bigger, more powerful engine, and a new seven-speed automatic, giving it a big boost in performance and a sportier sound. The SL55 AMG gets more power as well. The steering and active suspension have been upgraded on all the 2007 models, sharpening the handling. At the same time, these cars provide grand touring intimacy, for quiet conversation or unimpeded stereo performance. New upholstery materials give the cabins a richer appearance. Drop the top and they deliver comfortable, top-down motoring, putting the wind in your hair, and whisking your troubles away. Buffeting is well controlled, so you don't even have to put up with much wind. Few sports cars can boast a continuous 50-year history like the Mercedes-Benz SL can. First offered as a two-seat 300SL roadster in 1957, the SL-Class brought heart-stopping good looks, fuel injection, independent front and rear suspension and disc brakes to the sports car party, and has been in the Mercedes-Benz lineup ever since, leading the applied technology in the sports car segment with things like the...