The Mercedes-Benz line-up expands greatly for the 1998 model year. Mercedes-Benz launches into a brand-new vehicle segment inside the United States. A premium sport utility vehicle, the 1998 Mercedes-Ben ML320 represents a new chapter for the company powered by a 3.2-liter V-6 engine combined with a standard four-wheel drive. Mercedes-Benz delivers a new entry to the lower-cost convertible category by introducing the SLK. Tailored to the desires of roadster buyers, the Mercedes-Benz SLK is offered with the bonus of a convertible hardtop rather than a soft-top. As a two-door coupe, the new Mercedes-Benz CLK320 complements the C-Class sedan but features a unique front end. Considerable upgrades have been made to E-Class range for 1998 that includes the addition of a wagon as well as the option of all-wheel drive. Electronic stability control is now standard on the Mercedes-Benz S600 sedan for 1998. Several Mercedes-Benz models in 1998 have been upgraded to feature compatible with the brand's new BabySmart technology. Found on the cars such as the C-Class, SLK-Class and E-Class, BabySmart-ready car child seats installed in the front passenger seat will automatically deactivate the airbag.