The new Mercedes AMG SL Roadster has been spied testing with minimal camouflage. The new Roadster is said to be entirely different from the previous generation or current AMG GT. It combines an aluminium space frame with a ‘self-supporting structure’. The SL will arrive with a fabric hood instead of the folding hard-top in a two-seater configuration. It is expected to be powered by multiples powertrains including six-cylinder engines and a V8. The car will compete with the Porsche 911 Cabriolet in the international markets.