2005 Mercedes-Benz S-class (W221) Dimensions, Size & Specs

The curb weight of the W221 Mercedes-Benz S-class ranges from 1805 kg to 2015 kg (approx. 3979 to 4441 lbs), depending on specific model variants and equipment. The maximum allowable weight, which includes the vehicle's weight plus maximum payload, is between 2475 kg and 2640 kg (5459 to 5820 lbs). This weight range reflects variations due to engine options, trim levels, and installed luxury features, making the W221 a solid and stable sedan designed for comfort and performance.

The luggage capacity of the Mercedes-Benz S-class W221 is 560 liters (about 19.8 cubic feet). Notably, folding the rear seats does not increase this figure because the sedan's design and trunk space are fixed, focusing on luxury and comfort rather than maximizing cargo volume. This luggage capacity is sufficient for typical luxury sedan usage, accommodating large suitcases and a moderate amount of luggage for extended travel.

The ride height or ground clearance of the W221 S-class is 146 mm (5.75 inches). This relatively low ground clearance is typical for luxury sedans focused on a smooth ride and stable handling on paved roads. While it may require careful navigation over steep driveways or speed bumps, it contributes positively to aerodynamic efficiency and driving dynamics, ensuring a comfortable and composed ride experience consistent with Mercedes-Benz luxury standards.

The W221 Mercedes-Benz S-class features several rim and tire size options to suit different performance and aesthetic preferences. Rim sizes include 8J x 17, 8J x 18, 8.5J x 18, and 8.5J x 19 inches. Corresponding tire sizes are 235/55 R17, 235/55 R17 W, 255/45 R18, 255/40 R19, and 275/40 R19. These options allow for variations in ride comfort, handling, and style, offering owners the ability to tailor their vehicle’s driving characteristics and appearance.

Yes, the Mercedes-Benz S-class W221 is designed to fit comfortably into a standard residential garage. With a length of 5079 mm (200 inches or approximately 16.7 feet) and a width of 1871-1872 mm (73.7-73.8 inches or about 6.1 feet), it occupies a similar footprint to many luxury sedans. Standard garages typically measure at least 2440 mm (8 feet) wide and 4877 mm (16 feet) deep, so while the W221 is on the larger side, it still fits with some room for maneuvering. Owners with slightly smaller garages should take care when parking but generally will not face issues accommodating the vehicle.

Compared to its predecessor, the W220 generation, the W221 Mercedes-Benz S-class is notably larger and more imposing. The W220 measured about 5000 mm in length versus the W221's 5079 mm, adding nearly 8 cm (3.15 inches). Width and height were also slightly increased, providing greater interior space and a more substantial exterior presence. This evolution reflects Mercedes-Benz's commitment to enhancing luxury, technology, and passenger comfort with each generation, making the W221 feel roomier and more refined than the W220.

When compared to contemporaries like the BMW 7 Series (E65/E66) and Audi A8 (D3), the Mercedes-Benz S-class W221 is competitive in size. The W221’s 5079 mm (200 inches) length is similar to the BMW 7 Series, which ranges around 5090 mm, and slightly longer than the Audi A8 at approximately 5063 mm. Width-wise, the W221 is also comparable, offering about 1871-1872 mm, a bit narrower than BMW’s around 1900 mm. This places the W221 solidly within the full-size luxury sedan category, balancing spaciousness and maneuverability while embodying Mercedes’ hallmark elegance.

The roof load capacity of the W221 Mercedes-Benz S-class is rated at 100 kg (220 lbs). This relatively modest limit suggests that while the car can handle roof attachments such as luggage racks or compact cargo boxes, it is primarily designed for luxury sedan use rather than heavy rooftop cargo. Users should ensure that any roof load is well distributed and does not exceed this limit to maintain vehicle safety and handling, especially considering the car’s focus on comfort and performance.

The W221 generation marked a significant leap forward for the Mercedes-Benz S-class in terms of technology and luxury features. Introduced in 2005, it offered advanced driver assistance systems such as Distronic adaptive cruise control, Night View Assist for low-light visibility, and a PRE-SAFE system designed to prepare the vehicle and occupants for imminent collisions. The interior featured high-quality materials, improved ergonomics, and cutting-edge infotainment, all reinforcing the S-class's status as a technological and comfort benchmark in the luxury sedan segment during its production period (2005-2009).