Mercedes-Benz S600

If you're hankering for a V12-powered Mercedes-Benz S-Class, there's very, very little to complain about in regards to the 621-horsepower, 738-pound-foot S65 AMG. That car will hit 60 in just 4.2 seconds and embarrass a fair few sports cars along the way. What if you need a bit more relaxed power delivery, though, but aren't willing to associate with the plebes in the world of the V8-powered S-Class?

Currently, there's nothing in the S-Class range that exactly fills the bill – if you want an S-Class with a V12, AMG is the only way to go. If a report from Carscoops is to be believed, that will change at next week's Detroit Auto Show as Mercedes is set to unveil its new S600. The sleuths over there have acquired not just leaked pictures of the new car, but a spec sheet detailing the new entry.

With its 6.0-liter, twin-turbocharged V12 detuned to "just" 523 hp and 612 lb-ft of torque, it sits neatly between the 455-hp S550 and the 577-hp S63 AMG. The new S600 can hit 62 in just 4.6 seconds, and like the rest of the S-Class range, it will be limited to 155 mph.

We've included both the images and the spec sheet in a gallery up top. Have a look, and then be sure to check back here next week for our full battery of coverage from the 2014 Detroit Auto Show.