The midrange Jaguar S-Type has been heavily updated for the 2003 model year marked with a mildly revised grille and a new interior featuring standard side curtain airbags. The 3.0-liter V-6 engine returns to the S-Type for 2003 connected to a six-speed manual transmission while the V-8 model's powerplant has grown to 4.2 liters in displacement. In addition to a naturally-aspirated 294-horsepower trim level, an all-new Jaguar S-Type 4.2 R features a 400-horsepower supercharged V-8 engine. A unique mesh grille and standard sport suspension is also included with the R version. Adding the 4.2-liter V-8 engines to the XK8 lineup for 2003, Jaguar's outer styling changes for the XKR involve new wheels and badging. HID (High Intensity Discharge) headlights are now standard on the 2003 XKR. A new Jaguar XJ sedan has been prepared for introduction for the 2004 model year. In the final year for the current sedan design, the Jaguar XJR is offered in a limited production, R1 Performance Package featuring enlarged brakes, 18-inch BBS wheels and altered suspension characteristics.