The A4 returns for 2008 with several improvements, both mechanically and technologically. Revisions include a new four-link front suspension, a retooled AWD system, and modified powertrain configurations. Roadjet technology has also been added certain interior features, including the seats and sound system. Standard luxury amenities across the board include automatic climate control, alloy wheels, an alarm system, keyless entry remote, and a stereo system with a six-disc CD changer. Available options on the A4 include Bluetooth Wireless technology, a DVD-based navigation system, unique interior wood trim, and rear side impact airbags. The optional Sound Package includes a Bose AudioPilot sound system and a Sirius radio feature.