The A9 is a concept vehicle that has not yet been released by the Audi company. The A9 is a prototype that is scheduled to release to the masses in the year 2015. The vehicle is described as a 4-door luxury sedan and will supersede the Audi A8. Audi has confirmed that the A9 will be their most expensive release to date. The A9 will feature high end finishes, a engine that can be upgraded to 500 HP, and has been compared to the Aston Martin Rapide. The price has been confirmed at between $130,000 and upwards, depending on the upgrades chosen by the buyer.