The Audi A8 is a four-door four/five-seat large luxury car built by the Audi, to replace the Audi V8 as its flagship model. First brought to the market in 1994, most versions of the A8 have featured Audi's 'trademark' quattro permanent four-wheel drive as standard, as well as a multitronic or tiptronic automatic transmissions. Two generations of the A8 have been produced, in both short and long wheelbase form, and are built on successions of the Volkswagen Group D platform series.