Revised styling, optional run-flat tires, and wider availability of an adjustable suspension keynote S60's 2005 changes. This is the sedan version of Volvo's V70 wagon. All S60s have an inline 5-cyl engine. All but the entry-level version--the 168-hp 2.4 model--are turbocharged. The 2.5T models have 208 hp, the T5 has 257, the high-performance R has 300. The 2.5T AWD and the R have all-wheel drive, other S60s have front-wheel drive. The 2.4 comes with a 5-speed manual transmission, the T5 and R with a 6-speed. A 5-speed automatic is standard on 2.5T models, optional on other S60s. Wheel size ranges from 15 inches on the 2.4 to optional 18s for the T5 and R. The T5 has a sport suspension. Standard on the R and newly optional on other S60s is Volvo's Four-C Chassis (Continuously Controlled Chassis Concept) with three driver-selectable settings to emphasize ride or handling. Run-flat tires on 17-inch wheels are optional. Front side airbags, head-protecting curtain side airbags, traction control, and antilock 4-wheel disc brakes are standard. An antiskid system is standard on T5 and R, optional for the others. Available features on selected models include a navigation system, bi-xenon headlamps, and, new for '05, rear obstacle detection and real-wood interior trim. All S60s get revised nose and tail appearance, including LED taillamps, plus new seats and center console. No longer available is Volvo's On-Call Plus assistance system.