It's an automotive icon, with a history that dates back to the 1950s. Now, it's undergone some improvements. The Mercedes SL has a powerful engine, a nine-speed automatic transmission, five dynamic drive programs -- and the suspension is equipped with an Active Curve Tilting feature.The SL has always been a top-of-the-line touring roadster, and the new model continues that tradition. We're going to test an AMG SL 63 that has a power output of 430 kW.