YACC designers describe the car's interior as more living room than cockpit, replete with modern furnishing fabrics. The interior design hints at the role women played in the cockpit with the ponytail notch in the headrest, the additional thought for storage, and interchangeable seat covers and carpeting fabrics.
"Let's bring the living room into the car," said Maria UCLA, Color and Trim designer. "Let's use materials, not obscured by coats of shiny enamel."
The interior design of the car is adjustable. The seat pads can be exchanged for different colors and fabrics, including leather, linen, wool
buckle (a knit fabric), or a shimmering yellow-green embroidered seat pad. The carpet can also be swapped out for different styles. The idea of exchangeable carpet and seat pads is to give owners options when they are tired of looking at the same fabric or if the fabric becomes worn. Changing the interior gives owners a sense of a new car. These exchangeable seat covers and carpet are also washable.
Space and storage are maximized throughout the YACC interior. The gear shifter, usually positioned between the driver and passenger seat, is located on the steering column, and the parking brake is electronic and integrated further increasing interior space.
With the gear shifter and parking brake out of the way, the center console in the YACC provides significantly more storage. The console is divided into three compartments. A shallow compartment is available for keys, mobile phones, coins, and other small items. Slide back this top compartment to reveal a larger compartment for a handbag. Yet another compartment is available for a notebook computer. The center console also features a cooler and a wastebasket.
Moving from front seat to back seat, cinema-style seats in the back can be folded up to allow more space for luggage and other cargo. Designers found that drivers use their back seats more often for cargo than for passengers. When there are passengers, they put the seat down as they enter.