1998 Mercedes-Benz SL (R129, facelift 1998) Dimensions, Size & Specs

The curb weight of the Mercedes-Benz SL (R129 facelift 1998) ranges from 1735 kg to 1975 kg (3827 to 4355 lbs), depending on the model and configuration. The maximum allowed weight ranges from 2130 kg to 2320 kg (4695 to 5113 lbs). These weights reflect the solid construction and luxury equipment included in the SL series, balancing performance and comfort. The substantial weight plays a role in its smooth ride quality and stability at higher speeds.

The Mercedes-Benz SL (R129 facelift 1998) offers a luggage capacity of 265 liters (approximately 9.4 cubic feet). This capacity is reasonable for a two-seater roadster, allowing enough space for medium-sized suitcases or weekend bags. While it’s not as spacious as an SUV or sedan, the boot size is practical enough for typical road trips or weekend getaways, making it ideal for couples or individuals who prioritize sporty driving and open-top experience without compromising basic luggage needs.

The 1998 Mercedes-Benz SL (R129 facelift) comes equipped with several wheel rim sizes, including 8.25 J x 17 H 2, 9.5 J x 18 H 2, and 8.5 J x 18 H 2. Corresponding tire sizes include 245/45 R 17 W, 275/35 ZR 18, and 245/40 ZR 18, respectively. These wheel and tire options provide a balance between performance and ride comfort, with the wider 18-inch tires enhancing grip and handling dynamics, especially at higher speeds or spirited driving conditions, while the 17-inch options tend to offer a smoother ride.

Yes, the Mercedes-Benz SL (R129 facelift 1998) fits comfortably into a standard residential garage. Typical garage door openings measure about 2438 mm (96 inches) wide and 2134 mm (84 inches) tall, and most garages have interior widths around 3000 mm (118 inches) or more. The SL's width of 1812 mm (71.3 inches) and height of approximately 1300 mm (51.2 inches) leave ample clearance on all sides. Its length of 4499 mm (176.9 inches) is also manageable for a standard garage depth of around 6000 mm (236 inches). So parking and maneuvering inside a typical home garage is very practical for this model.

The 1998 facelift of the R129 Mercedes-Benz SL maintained the core external dimensions close to the pre-facelift models. Both versions have similar length around 4490–4500 mm (176.8–176.9 inches), width near 1812 mm (71.3 inches), and height close to 1295–1300 mm (51.0–51.2 inches). The facelift focused more on styling updates, improvements in safety, and engine options rather than major dimensional changes. This meant the driving experience and garage compatibility remained consistent, while benefitting from cosmetic and technological enhancements introduced in 1998.

Compared to similar luxury roadsters of the late 1990s like the BMW Z8, Porsche 911 Cabriolet, and Jaguar XK8, the 1998 Mercedes-Benz SL (R129 facelift) is slightly larger in overall footprint. Its length of 4499 mm (176.9 inches) and width of 1812 mm (71.3 inches) place it in the mid-to-large size range for roadsters, offering more interior space and luggage capacity compared to the more compact BMW Z8 or Porsche 911 Cabriolet. While the SL is heavier (1735-1975 kg or 3827-4355 lbs), it provides a blend of luxury and comfort that some competitors sacrificed for sportier handling or performance focus.

The 1998 facelift of the R129 Mercedes-Benz SL brought several design and performance enhancements over earlier models. Exterior changes included a revised front bumper, updated headlights with projector lamps, and styling tweaks that modernized the roadster's appearance. Inside, there were upgrades in materials and technology, such as optional COMAND system for navigation and audio control. Mechanically, some engines received power and efficiency improvements, and safety was enhanced with side curtain airbags becoming standard or optional. These changes kept the SL competitive in the luxury roadster segment.

The 1998 Mercedes-Benz SL (R129 facelift) offers several rim sizes: 8.25 J x 17 H 2, 9.5 J x 18 H 2, and 8.5 J x 18 H 2, paired with tires sized 245/45 R 17 W, 275/35 ZR 18, and 245/40 ZR 18 respectively. Larger 18-inch wheels with wider tires generally improve cornering grip and high-speed stability but may cause a firmer ride compared to 17-inch setups. The tire profiles and widths balance traction, handling responsiveness, and ride comfort, allowing the SL to deliver confident sporty driving dynamics without compromising luxury driving refinement.

The 1998 Mercedes-Benz SL (R129 facelift) weighs between 1735 and 1975 kg (3827 to 4355 lbs), which is substantial for a roadster but typical for a luxury convertible equipped with safety and comfort features. Its dimensions — length 4499 mm (176.9 inches), width 1812 mm (71.3 inches), and height around 1300 mm (51.2 inches) — give it a commanding road presence while maintaining a low, sporty stance. The weight contributes to a smooth, planted ride and stability at speed but slightly reduces agility compared to lighter sports cars. Nonetheless, the SL balances luxury ride comfort with capable handling thanks to its suspension setup and chassis tuning.