2008 Jaguar XJ Sovereign (X358) Dimensions, Size & Specs

The Jaguar XJ Sovereign (X358) has a body width of 1860 mm (73.2 inches). With the side mirrors folded, the width increases to 1898 mm (74.7 inches), and when the mirrors are opened, it extends further to 2104 mm (82.8 inches). This difference is significant especially when parking in tight spots or navigating narrow streets. Drivers need to be mindful of the opened mirrors, as they add to the car’s overall width by about 24.4 cm (9.6 inches), which might make fitting within narrow parking bays or garages more challenging. Folding the mirrors helps reduce the width for easier maneuvering in constrained spaces.

The 2008 Jaguar XJ Sovereign’s curb weight ranges between 1609 to 1658 kg (3546 to 3654 lbs), depending on specifications and optional extras. The maximum laden weight, including passengers and cargo, is between 2246 and 2306 kg (4953 to 5087 lbs). This relatively heavy curb weight is typical for a luxury sedan with a full suite of comfort, technology, and safety features. The considerable weight contributes to a smooth, planted driving experience with less road vibration, but it also means the vehicle requires enough power and well-tuned suspension to maintain agility and responsive handling. Drivers will experience a balance of stately luxury and competent handling dynamics.

The luggage compartment of the Jaguar XJ Sovereign offers 470 liters (16.6 cubic feet) of storage space. This volume is quite generous for a luxury sedan and can accommodate several medium to large suitcases, making it suitable for both everyday errands and longer trips. Its practical design allows easy loading and unloading, and the rear seating arrangement often supports folding mechanisms that further enhance cargo capacity if needed, although exact rear seat folding depends on trim and options. This capacity strikes a good balance between passenger comfort and luggage practicality.

Given its length of 5216 mm (205.4 inches) and width with mirrors folded at 1898 mm (74.7 inches), the Jaguar XJ Sovereign is relatively large for a standard residential garage. Most single-car garages measure around 6 meters (about 236 inches) in length and about 3 meters (118 inches) in width. The XJ’s length leaves limited extra space inside the garage, especially for maneuvering or storing additional items. The width with folded mirrors fits comfortably within the garage width-wise, but with mirrors opened, it would not fit. Homeowners with a standard garage should measure carefully and consider space for door opening and passenger ingress.

The 2008 Jaguar XJ Sovereign (X358) is a significant update over previous XJ generations, blending modern styling with traditional Jaguar luxury. Compared to the previous X350 generation, which was produced from 2003 to 2007, the X358 is slightly larger in length and width, emphasizing a more contemporary and imposing road presence. While exact figures vary between trims, the X358 length of 5216 mm (205.4 inches) is generally longer than its predecessor's approximately 5130 mm (201.9 inches). Width and height also see modest increases, reflecting design evolution aimed at improved interior space and aerodynamic efficiency. This results in a roomier cabin and improved comfort without compromising the classic Jaguar sedan elegance.

The 2008 Jaguar XJ Sovereign’s width of 1860 mm (73.2 inches) and height of 1463 mm (57.6 inches) place it comfortably within the typical dimensions of full-size luxury sedans from the same era, such as the BMW 7 Series, Mercedes-Benz S-Class, and Audi A8. For example, the BMW 7 Series (E65) from that period is slightly wider at around 1900 mm (74.8 inches) but similar in height, offering similar passenger space. The Jaguar’s design emphasizes a slightly lower and sleeker profile, contributing to sportier aesthetics while still delivering interior spaciousness. This blend offers buyers a mix of traditional British luxury with modern, dynamic proportions comparable to German competitors.

The Jaguar XJ Sovereign (X358) rides on 8.5J x 19 inch rims paired with 255/40 HR19 tires. These specifications indicate relatively wide, low-profile tires designed to enhance road grip, handling precision, and ride comfort. The 19-inch wheels contribute to a smooth ride by combining sufficient sidewall height with sporty aesthetics, while the wide 255 mm tires ensure good traction on various road surfaces. This setup balances Jaguar’s traditional focus on luxury with a performance-oriented driving experience, making the XJ Sovereign responsive and stable at higher speeds while maintaining comfort during routine driving.

The Jaguar XJ Sovereign (X358) has a roof load capacity of 75 kg (165 lbs), which is suitable for carrying typical roof accessories such as a roof box, bike rack, or small cargo carrier. This load capacity allows owners to expand the car’s practicality for travel or transporting sports equipment, provided the accessories are properly secured and weight limits adhered to. Exceeding this limit is not recommended as it could affect the vehicle's stability, aerodynamics, and structural integrity. Always consult the specific accessory guidelines to ensure compatibility and safety.

The Jaguar XJ Sovereign (X358), produced from 2007 to 2009, represents a blend of classic Jaguar luxury with modern advancements. Compared to earlier XJ generations, the Sovereign trim incorporates enhanced interior materials, more sophisticated electronics, and refined design cues such as improved wood veneers and upgraded leather upholstery. Technological features like advanced climate control, premium audio systems, and more responsive infotainment options set it apart. These improvements elevate passenger comfort, convenience, and prestige, preserving Jaguar’s tradition of opulent sedans while embracing contemporary trends.