New Mercedes-AMG SL previewed All change for all-new, all-AMG rival for Porsche 911 Cabriolet based on new aluminium-intensive MSA space-frame The new 2022 Mercedes-AMG SL roadster will be based on an all-new, AMG-developed composite aluminium space-frame chassis that will also form the basis of the next-generation Mercedes-AMG GT. Expected to be launched in Europe later this year, the eighth-generation SL will be a Mercedes-AMG-only model for the first time when it reaches Australia in 2022. As before, the next SL will continue with a 2+2-seat layout, however, the folding hard-top roof of the previous two generations will replaced by a fabric configuration as part of a clean-sheet redesign.