The S-Type sedans are Jaguar's mid-priced ofering, falling in between the entry level X-Type and the flagship XJ sedans. Both the X-Type and S-Type Jaguar sedans are differentiated from the flagship XJ by their foundations. The two lower level sedans are Ford-based, while the XJ remains pure Jaguar. The S-Type is built atop Ford's former Lincoln LS platform, and shares many structural and mechanical similarities.

For 2006, the V-8 engine has been tweaked for slightly more power and a more advanced braking system has also been added. Bluetooth and satellite radio are added to the options roster.

The S-Type sedan has a unique and distinguished grille design, reminiscent of the Jaguar's classic designs. The S borrows many styling elements from the Jaguar Mark II sedan built in the 1960s.

The two model S-Type lineup begins with 3.0 liter V-6 version, which generates 235 horsepower. It comes equipped with leather, walnut trim, a moon roof, dual zone climate control, 17-inch wheels, and full power accessories.

A 4.2 liter V8-powered version is also available. This V-8, found in all the higher priced models, now produces 300 horsepower and 310 pound-feet of torque. This model receives sound system upgrade, xenon headlights, a navigation system, and an electric rear sun shade.

A six speed automatic transmission sends power to the rear wheels on both models.