The 2008 Infiniti M's cabin befits its status as a luxury sport sedan: Materials are rich and fit well, real wood or metal trim is standard, and seats are mostly comfortable, though noise intrusion is somewhat an issue.
"The Infiniti M35's large cabin seats five comfortably and is well appointed with leather trim and standard rosewood accents. Its seats are firm, highly adjustable and comfortably bolstered," writes Edmunds. They like the Infiniti M's "10-way power and climate-controlled seats" and detail some optional features: "power reclining and heated rear seats, rear audio controls, and a rear sunshade." Cars.com notes of the 2008 Infiniti M, "Four of the five M's seats offer ample legroom and headroom, but the bulky floor hump in back means a fifth passenger has to share foot room." They like the fact that "after you park, the steering wheel automatically powers upward to ease exit and entry -- and does so much faster than in some of the M's crankier peers." Infiniti 2008 Ms have 105.2 cubic feet of cabin volume, also according to Cars.com.
"Interior storage is OK," says ConsumerGuide of the 2008 Infiniti M. "[There's] good trunk volume and lid hinges don't intrude, but short aperture means drawer-like access." Kelley Blue Book points out "a pull-down center armrest [in the rear] conceals a modest pass-through opening to the M's 14.9 cubic-foot trunk."
"A warm, upscale ambiance" is how ConsumerGuide describes the Infiniti M's cabin. However, Edmunds writes, "the quality of materials is a bit uneven, and we find that the layout of the center stack controls isn't as clean and intuitive as it could be." Cars.com notes, "There are leather wrappings around the door pulls and chrome runners along the steering wheel."
Noise is a problem in this Infiniti; 2008 M35X and M45 "thump more loudly over cracks and bumps," finds ConsumerGuide. "It is somewhat less peaceful than other performance luxury cruisers," reports Edmunds, "[as] at highway speeds, the Infiniti M35 also exhibits a noticeable amount of engine and road noise."