2018 BMW 3 Series Sedan Interior and Cargo

All 3 Series models come standard with SensaTec upholstery, with Dakota leather being an option. On the 320i, black or Venetian beige upholstery can be specified, while Dakota leather can be had in black, oyster, or Venetian beige/black. The 328d, 330i, and 340i's interiors can be specified in black with red stitching, while additional colors like cognac and dark brown are available for the Dakota leather. The steering wheel is wrapped in leather, while woodgrain trim is optionally available on the 320i but standard on all other variants.

The 3 series has a usefully sized trunk measuring 13 cubic feet in capacity. This is enough to accommodate two large suitcases, one smaller suitcase, and a few soft bags. Underfloor storage and tie-down hooks and netting also prevent smaller items from rolling around. Conveniently located levers make it easy to drop the 40/20/40 split-folding rear seatbacks, although this functionality is an option on the base 320i. Storage for small items is only average, but all doors have well-sized pockets and there are four cupholders - two in front and two at the back. Child seats can be easily positioned on any of the three rear seat positions, where LATCH anchors are fitted.

While most of the essentials are in place, the 3 Series isn't the most lavishly equipped model in the class, with many of the most appealing features being found on the options list. Standard equipment on the base 320i includes dual-zone climate control, SensaTec-trimmed seats, cruise control, keyless entry, keyless start, a back-up camera, and power windows/mirrors. All other models in the range add powered front seats with a memory function for the driver and a universal garage door opener. Optionally available features include a dynamic digital instrument cluster, side and top view cameras, heated seats, park distance control, and a head-up display.

The 3 Series benefits from BMW's advanced, responsive iDrive control interface. A 6.5-inch color display screen is standard, but the optional 8.8-inch screen is a worthwhile upgrade. With familiarity, the system is easy to use with appealing graphics and fast processing speeds. The standard audio system includes HD radio, Bluetooth connectivity, an auxiliary audio input, MP3 player, and smart device integration (Android Auto isn't available while Apple CarPlay is an option). 340i models add satellite radio and a 16-speaker Harman Kardon sound system providing superb acoustics. The Premium Package adds Apple CarPlay integration, a navigation system, a Wi-Fi hotspot, and improved Bluetooth connectivity.