The 365 GTC/4 cabin was to a completely new design and featured an instrument binnacle that was now becoming ever more integrated into the central console in a move that was to suggest the style for years to come. Overall, the interior was more comfortable and refined than that of the Daytona and offered a good deal more luggage room plus two small seats although these were best folded down for additional storage space. Indeed, this cabin allocated rear occupants with a much smaller degree of legroom than previous 2+2 models, a factor attributable to its drastically reduced wheelbase. Air conditioning was fitted as standard but so were cloth seat centers with leather bolsters, a full Connolly leather interior being optional.

People often mistake the two round vents on the back of each front seat as speakers. They are vents. The only speakers are located at the lower front of each door panel. Both the vent trim rings and the speaker grills were made from black plastic and have a tendency to crack. An owner in Australia once remanufactured the vent trim rings and another owner has made replacement speaker grills out of more durable aluminum. The speakers are powered by a Becker "Mexico" model radio with cassette deck and external amplifier located behind the radio under the dash. This was a state-of-the-art radio in its day. The antenna is a powered unit located on the right-rear quarter panel and operated automatically when the radio and key are on.

Instrumentation is complete, as befits a Ferrari sports car. In the driver's side binnacle is the speedometer, odometer, trip meter, oil pressure gauge, coolant temperature gauge, and tachometer. Turn signal indicators (separate left and right) and warning lights for headlights (green), and high beams (blue) are located in the speedometer cluster. The oil pressure and temperature gauges have their own (red) warning lights while the tach contains warning lights for brakes (red), choke (yellow), and rear window defroster (orange).

Above the console are four gauges: clock, fuel, oil temperature, and ammeter. Again the fuel, oil temp, and amp gauges have their own warning lights. The clock is analog and set by pulling and rotating a small knob. All gauges are from Veglia [Borletti], an Italian supplier eventually purchased by Magneti Marelli.

Door glass is raised/lowered by electrical motors operating a complex cable system in the doors and actuated by switches located above the ashtray in the center console. Vent windows open and close manually via rotation of round knobs on each door, a much more reliable system than the latches glued to the vent glass on Daytonas. Rear quarter windows are fixed. The rear window has thin defroster wires embedded in the glass, operated by a rocker switch in the console.

All 365 GTC/4s had a dash, console, shift boot, and rear package tray covered in "mouse hair", a black/gray fuzzy synthetic suede material with a grain. The same material was used on the Daytona and Dino models of the era as well. Over time mouse hair tended to lose its fuzziness and fade to a light gray color. Reproduction mouse hair is available at more than $200/meter.

VM-846 Beige leather in s/n 15929

VM-3104 Pelle Orange leather in s/n 15611

VM-3171 Red leather in s/n 14419

VM-3218 Pelle Beige leather in s/n 15505

VM-3230 Gray leather in s/n 15773

VM-3234 Beige leather in s/n 14679

VM-3223 White leather in s/n 14941

VM-8500 Pelle Nera Cogolo leather in s/n 14455

Brown cloth in s/n 15709

Blue cloth in s/n 14841

Gray cloth in s/n 15815

Green cloth in s/n 14877

Red cloth in s/n 14817

Seat vents in s/n 15505

Mouse hair in s/n 15929

Headliner in s/n 15505

Ferrari offered 10 different leather colors for the interior on 365 GTC/4 models. Plaid cloth upholstery inserts were standard on the seats and door panels, a feature unique to the 365 GTC/4 model. Full leather upholstery was a popular option. The carpet was piped in leather and rubber foot mats were sewn into the carpet on both driver and passenger sides.

Visit the 330 GT Registry's Leather Page for images of some of the leather colors available from Ferrari during the 60s and early 70s.

Regardless of interior color, all 365 GTC/4s had a white pleated vinyl headliner and sun visors. These tend to hold up very well unless the car was owned by a smoker. Interior lighting is provided by three rectangular lights, one on each kick panel and one in the front center of the roof. The roof light is a neatly engineered rocker switch with three positions, on/off/door, selected by "rocking" the lens itself into three different positions. The four vents (center two for A/C, outer two for heat/vent) located atop the dash are similarly clever. Each round vent has angled slats and can be rotated 360 degrees to direct air towards the windscreen for defrosting or towards the occupants, or both, as desired.

Contrary to the press photo show below, all production 365 GTC/4s were equipped with a leather-wrapped aluminum steering wheel, not the older-style wooden wheel pictured. In fact, unlike contemporary cars such as the BMW 3.0CS coupes, there was no wood anywhere (except the trunk floor carpet panel). The radio and shift knob shown below are also not consistent with production model equipment.