This car review is specific to this model, not the actual vehicle for sale.
The A8 carries the technology flag for Audi, and along with its understated styling and all aluminum frame, it's a unique choice in the full-size luxury sedan market. The five-passenger A8 comes in five variations: 3.0T NWB (normal wheelbase), 4.0T NWB, 3.0T LWB (long wheelbase), 4.0T LWB and the W12 LWB. The 3.0T sports a supercharged V6 with 333-hp, the 4.0T is a twin-turbo direct-injection V8 producing 420 horsepower, and the W12 is a 6.3-liter twelve-cylinder engine with direct-injection and 500 horsepower. Power on all models is routed to the ground by an eight-speed automatic paddle-shifted Tiptronic transmission and quattro all-wheel drive. Optional tech features include a 19-speaker Bang & Olufsen sound system, solar-panel sunroof, dual-pane security glass, night vision, full LED headlights, blind spot, collision and lane assistance, and adaptive cruise control. Anti-lock brakes, electronic stability system, active head restraints, LED brakelights and ten airbags are some of the standard safety features on the A8. For 2013, there are two new engines, a 3.0-liter supercharged V6 and a twin-turbo 4.0-liter V8.