Fusion is replacing the aging Taurus as Ford's midsize sedan. It shares a basic architecture with the Mercury Milan and the premium-midsize-class Lincoln Zephyr. Fusion offers S, SE, and SEL models. The S has a 160-hp 4-cyl engine. SE and SEL come with the 4-cyl or a 221-hp V6. The 4-cyl uses a 5-speed manual transmission or optional 5-speed automatic. The V6 has a 6-speed automatic. Four-wheel disc brakes are standard. ABS is optional, as is a safety package with front side airbags and curtain side airbags. Traction control is available for V6 models. A sunroof and leather upholstery are optional for SE and SEL. Fusion, Milan, and Zephyr are based on the Mazda 6 from Ford's Japanese affiliate, but are slightly larger and lack the 6's hatchback and wagon body styles.