Features on the A8 4.2 include:  18-inch alloy wheels, automatic dual-zone climate control, speed-sensitive steering, driver assist package, adaptive air suspension, heated power-folding auto-dimming mirrors with reverse tip-down and LED puddle lights, heated washer nozzles, power sunroof, adaptive self-levelling bi-xenon headlamps with washers, front and rear fog lights, heated leather-wrapped multifunction steering wheel with power tilt and telescopic column, auto up/down on all windows, cruise control, keyless entry and ignition, power rear sunshade, manual side sunshades, 16-way heated leather seats with four-position memory, heated rear seats, power door closers, genuine wood inlays, tool kit, power trunk closure, auto-dimming rearview mirror, garage door opener, advanced Multi Media Interface, six-CD changer, Bose Surround Sound system, Sirius satellite radio, driver information centre with eight-colour LCD screen, anti-theft alarm, navigation system, rearview camera, front and rear acoustic parking warning system, rain-sensing wipers, driver and front passenger knee airbags, and rear seat side airbags.

Another feature found on this A8 is the solar sunroof. Solar panels are incorporated under the glass on the sunroof used to provide power to the climate control system fans. Allowing cool outside air to be blown inside the cabin without draining the battery, even when the car is turned off.