Aston Martin DB9 Transmission by year

YearTransmission
20166-speed automatic
20156-speed automatic
20146-speed automatic
20136-speed automatic
20126-speed automatic or 6-speed manual
20116-speed automatic or 6-speed manual
20106-speed automatic or 6-speed manual
20096-speed automatic or 6-speed manual
20086-speed automatic or 6-speed manual
20076-speed automatic or 6-speed manual
20066-speed automatic or 6-speed manual
20056-speed automatic or 6-speed manual

Source: U.S. EPA / DOE fuel economy data (fueleconomy.gov).