No matter which drivetrain fits, the S-Class' seats will accommodate four adults very, very well. The cabin's spacious and well designed, with tall and wide door openings for easy access.
The standard front seats are power-adjustable, leather-trimmed, and suitably wide and firm. We like the optional dynamic multicontour seats even more. They're padded with air bladders that inflate and deflate at your command-or even in a massage-like order-to keep backs and shoulders in alignment on long road trips.
With those front seats raked and powered all the way back, there's still admirable rear-seat legroom because all S-Classes sold here are of the long-wheelbase variety. The backseats are sculpted comfortably, too, and can be heated and contoured, and trimmed in sueded fabric in AMG models.
The S-Class' glovebox and console are large enough for small handbags and bigger electronic gadgets; the fold-down armrest in back has its own hidden stowaway space and a pass-through to the 16-cubic-foot trunk that holds suitcases and golf bags aplenty. Space is rarely at a premium.
Quality oozes from whatever pores haven't been varnished or paneled over inside the S-Class' cabin. It wears some of the richest textures and finishes you'll see in a German car: case in point, the lush wood trim applied to the dash, doors, and consoles. It's all fitted tightly, with few flaws visible in the various Hybrids and AMGs we've driven over the past three years.
Automobile: "the warm, welcoming feel of the cabin"
ConsumerGuide: "affords outstanding room and comfort"
Edmunds: "Space is plentiful"
ConsumerGuide: "only the very tall will find headroom lacking"
Cars.com: "large, soft, leather easy-chair type" seats have "fan ventilation, automatic-inflating side bolsters, and a relaxing massage function"
Edmunds: backseat is a "favorite of wealthy dads and heads of state alike"
Automobile: "I can't imagine anyone not being comfortable in the Benz's enormous back seat."
Cars.com: "massive backseat"
Kelley Blue Book: "storage spots are numerous"
Kelley Blue Book: trunk is a "trip-friendly luggage swallower"
Edmunds: trunk "offers 16.2 cubic feet of space, more than enough for golf clubs and a few suitcases"
ConsumerGuide: trunk is "usefully shaped, nicely finished, and includes an underfloor storage bin"
Edmunds: "materials quality is beyond reproach"
ConsumerGuide: "serene, with little road or wind noise"