The Swedish carmaker has upgraded its sleek, clean-lined S90 sedan for the 2018 model year. Most notably, the carmaker has added 4.5 in. to the wheelbase, expanding the rear seat compartment. It has empowered passengers to control multiple features from the rear seats: Sunroof/sunshades, climate/fan, rear seat heaters (if equipped), windows, locks, and the front passenger seat can be moved in four directions. The S90 also comes with a 250 hp turbocharged, 4-cylinder engine that uses an 8-speed transmission to boost performance and fuel economy.