Mercedes-Benz is working on an extra, extra-long version of its S-Class sedan that will revive the Pullman name and have a price tag that’s more than double that of the Rolls-Royce Phantom. Like previous-generations Mercedes Pullmans, the new one will likely come exclusively in S600 trim and offer its prestigious clientele armor protection.

One major difference, however, is that the new Mercedes Pullman will  be built by Mercedes tuning specialist Brabus. The information was first reported by Automobilwoche.

Prototypes of the new Mercedes Pullman were recently spotted outside Brabus’ headquarters in Bottrop, Germany, suggesting that development is already well underway. The vehicle will stretch approximately 21 feet, making it 16 inches longer than the Rolls-Royce Phantom Extended Wheelbase, and inside there will be three rows of seats.

Production is expected to start in December 2015. Note, later this year Mercedes will unveil another stretched version of the S-Class that will use the Maybach name. This one will be shorter than the Pullman and have only two rows of seats.

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