Group Research & Mercedes-Benz Cars Development boss Thomas Weber has told Automotive News that the company will build a convertible based on the S-Class Coupe concept, which was shown at the recent Frankfurt Motor Show.

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Thomas said that the coupe is expected to be available across US dealerships next year while the convertible version will arrive in 2015. The S-Class convertible will be offered in both V8 and V12 engines alongside a folding fabric roof. The said V8 power plant will most likely be the same 449 hp/700 Nm 4.6-litre V8 Biturbo unit found in the S-Class Coupe.

If materialised, the S-Class convertible will be the first open-top S-Class since the W111 Cabriolet, sold between 1961 and 1971 and will join the brand’s broad lineup of convertibles like the SLS, SL and SLK roadsters as well as future model like the SLC/GT performance roadster.