In all C-Class models, five passengers may revel in a sizable wood-trimmed interior with leather and vinyl upholstery. Full leather is available. Powered front seats have ample rearward travel to accommodate tall occupants. Split, folding rear seatbacks are optional. The C-Class sedan’s trunk capacity is 12.2 cubic feet. In the wagons, cargo volume totals 25.2 cubic feet, and that space grows to 63.6 cubic feet when the split backseat is folded down. The luggage cover includes a netted partition, and the load floor conceals a portable collapsing storage basket.

Standard equipment includes dual-zone automatic climate control. The C320 sedan and wagon get power tilts, telescoping steering columns and Bose stereo systems. A Cockpit Management and Data (COMAND) option operates a navigation system, a sound system and a telephone using voice commands, steering-wheel buttons or controls around a dashboard screen. The Tele Aid emergency communication service is standard.