A pair of photos and a spec sheet detailing the 2015 Mercedes-Benz S600 have leaked onto the web, giving us our first look at the executive rocket ahead of its official debut at next week’s North American International Auto Show.

The S-Class for buyers who want V12 power but a more discreet appearance than the S65 AMG, the S600’s exterior features quad tailpipes, unique wheels and subtle V12 badges aft of the front wheels. Though front-end images aren’t yet available, expect the sedan to wear a toned-down rendition of its AMG sibling’s nose.

The S600’s engine bay will be home to a detuned version of the S65 AMG’s monstrous twin-turbo 6.0-liter V12 producing – if the leaked spec sheet is to be believed – 523 horsepower and 612 lb-ft of torque. Those figures compare with 621 ponies and 738 lb-ft of twist in the S65 AMG.

In place of the outgoing model’s five-speed automatic, the S600 will be fitted with a seven-speed “7G-Tronic Plus” auto. It isn’t clear whether rear-wheel-drive or Mercedes’ 4MATIC all-wheel-drive system will be employed.