For the largest cab in the industry, choose the Dodge Ram HD; 2008 Mega Cabs seat six with plenty of legroom for all.
One would think that in a vehicle the size of the 2008 Dodge Ram HD, there would be lots of room front and back. But as Edmunds relates, "rear seating in Quad Cabs is noticeably more cramped than in competitors' crew-cab trucks...The Mega Cab more than compensates by expanding legroom by nearly a foot and offering a comfy, reclining backseat." According to J.D. Power, "The Mega Cab, which was introduced in 2006, adds 22 inches of cabin length and features rear seats that can recline up to 37 degrees." Kelley Blue Book calls it "quite literally the biggest cabin in the pickup segment," adding, "the Mega Cab's additional 20 inches of length yields outstanding accommodations for front-seat and, particularly, rear-seat passengers."
Comfort in the Dodge Ram HD ranges from utilitarian to plush, depending on configuration and trim. Kelley Blue Book notes it ranges "from decently civil in a vinyl-clad ST-level Regular Cab Ram 2500 with its 40/20/40-split bench seat, to quite nice in a cloth-covered six-passenger SXT or SLT Quad Cab and to demonstrably upscale in a leather-swathed and ultra-spacious Laramie-spec Mega Cab." Edmunds sums up the Dodge Ram HD 2008 well: "The Mega Cab's gigantic rear seat makes the presidential accommodations on Air Force One seem snug, and the seats themselves also fold away with ease."
Bed capacity is one area where the 2008 Dodge Ram HD suffers. "The standard bed is shorter than expected, while the Mega Cab's truncated bed could potentially limit fifth-wheel trailering applications," notes Edmunds. The regular cabs come with a long bed only, while the Quad Cab has either a short or long cargo bed. "The rear doors on Quad and Mega Cab models swing open nearly 90 degrees to facilitate loading and unloading," states Kelley Blue Book. Inside the cabin of Dodge Ram HD 2008's with bucket seats, a wide and deep center console is big enough to hold a medium-sized laptop computer.
Edmunds thinks the Dodge Ram HD's cabin materials quality "could be a bit better...although it is a straightforward, user-friendly" design. "The dashboard's simple layout makes for easy use and appears to be constructed to a high standard," they add. Kelley Blue Book has similar thoughts on the 2008 Dodge Ram HD's usability: "The instruments are legible and most switches and controls well positioned -- although the audio system selector buttons and the undersized display for the optional navigation system could use a rethink."
Noise intrusion is not a problem. "The cabin is never filled with any objectionable noise, even at full throttle...[and] there is scarcely a trace of diesel clatter evident, provided you don't open the door when the engine is idling," finds Edmunds.