The Volvo S80 has undergone a comprehensive mid-generation face lift for 2004. Highlights include additional chrome exterior trim, a restyled grille, a revised rear deck, new door panels and a redesigned instrument cluster. The S80 model lineup has also expanded from three to five variants, as two new styles debut this year. A new 2.5T trim is available with both front and all-wheel drive. The 2.9 and T6 styles return, and the T6 Elite has been renamed the T6 Premium. All models except the 2.5T are available with Volvo's new Four-C adjustable suspension system. Volvo's power plant selection expands this year with the arrival of the 2.5T. This new trim is powered by a 2.5 liter inline five, which generates 208 horsepower and 236 pound-feet of torque. This engine can only be paired with a five-speed manual transmission, and fuel economy is expected at 20/27 mpg. The three other models house a 2.9 liter inline six cylinder engine, and every model is now turbocharged. This engine delivers 268 horsepower and 280 pound-feet of torque. Fuel economy is estimated at 19/26 mpg. A four-speed automatic transmission is mated to this engine. Reviewers have commented that the S80's interior layout is much improved for 2004, with more user-friendly controls and an aesthetically pleasing instrument cluster. The S80 offers strong acceleration and stable handling across the board, but the 2.9-equipped models will speed from 0 to 60 mph in about seven seconds. The optional new Four-C suspension is well reviewed, and its variable settings can be tailored for comfort with varying surfaces and driving needs. The Sport setting is a good match for the T6's power.