The Audi S8 is a mechanically-upgraded, high-performance version of the A8 debuted in 1996. Produced exclusively at Audi's Neckarsulm plant, unlike the donor A8 model, the S8 has been available only in short-wheelbase form and is fitted standard with Audi's quattro all-wheel drive system. Onboard manual keyless entry remote fob smart key programming using only programming instructions is not available, meaning that special equipment will be needed in order to program a keyless entry remote fob smart key.