2004 Cadillac XLR Dimensions, Size & Specs

The curb weight of the Cadillac XLR ranges between 1690 and 1730 kg (approximately 3726 to 3814 lbs). This weight is fairly typical for a luxury roadster equipped with advanced features and a hardtop convertible roof. The weight distribution and use of performance-oriented suspension allow the XLR to balance ride comfort with sporty handling. However, the relatively substantial mass means that while the car offers strong stability and smoothness on highways, maneuvering is tailored more to grand touring than ultra-lightweight sports dynamics.

The Cadillac XLR offers a luggage capacity of 125 liters (approximately 4.4 cubic feet) with the rear seats in place, which is modest and typical for a two-seat luxury roadster focused more on driving experience than cargo. When the rear seats (which are actually more of a small storage compartment due to this being a two-seater model) are folded down, the available luggage space increases to 328 liters (approximately 11.6 cubic feet). This additional space provides more flexibility for longer trips but still limits the amount and type of cargo compared to larger coupe or sedan configurations.

The Cadillac XLR features rim sizes of 8J x 18, typically fitted with tires sized 235/45 R18, 255/40 R18, or 235/50 R18. The 18-inch rims provide a good balance between sporty styling and ride comfort. Wider tires like the 255/40 R18 on the rear contribute to enhanced grip and stability during aggressive cornering, while slightly narrower tires on the front help with steering precision. These tire and rim choices are engineered to give the XLR confident handling characteristics while maintaining decent ride quality on various road surfaces.

Yes, the Cadillac XLR can fit into a standard home garage comfortably. With a length of 4513 mm (177.6 inches) and a width of 1836 mm (72.3 inches), the XLR is comparable in size to many mid-size coupes. Typical single-car home garages usually measure about 3,000 mm (10 feet) wide and 6,000 mm (20 feet) deep or larger, providing ample space for parking and maneuvering. Its height of 1279 mm (50.3 inches) is also well below typical garage door clearances. Thus, parking a Cadillac XLR in an average home garage poses no issues.

The Cadillac XLR was introduced in 2004 as a new flagship roadster and effectively replaced the Cadillac Allanté as the brand’s luxury convertible offering. Compared to the Allanté, which was larger and less sporty, the XLR is more compact and performance-oriented, with a length of 4513 mm (177.6 inches) compared to the Allanté’s approximate 4715 mm (185.6 inches). The XLR’s width and height are also slightly reduced, emphasizing a sleeker and lower-slung coupe profile. Overall, the XLR prioritizes modern performance and luxury features with a sportier stance versus the previous generation.

In comparison to contemporaries like the Mercedes-Benz SL-Class, BMW 6 Series Convertible, or Jaguar XK from the early to late 2000s, the Cadillac XLR's dimensions are competitive but slightly on the smaller side. For example, the Mercedes-Benz SL-Class of the era has a length around 4520 mm (178 inches) and width of about 1850 mm (72.8 inches), very close to the XLR. However, the Mercedes offers more passenger room and trunk capacity, reflecting its grand touring focus. The XLR’s size fits well within this luxury roadster class, combining sporty proportions with a focus on premium driving experience.

The Cadillac XLR’s luggage capacity is somewhat limited due to its sporty roadster design. With just 125 liters (4.4 cubic feet) of storage behind the seats, you can expect space for minimal luggage — such as a couple of small suitcases or overnight bags. Folding the rear compartment increases space up to 328 liters (11.6 cubic feet), which can accommodate more gear but still restricts large or bulky items. This makes the XLR more suited for short trips or errands rather than long vacations with significant luggage needs. Owners often consider additional options such as roof racks or travel bags designed for limited cargo space.

The Cadillac XLR's moderate size and curb weight between 1690 and 1730 kg (3726-3814 lbs) influence both its fuel consumption and handling characteristics. While it provides a stable and comfortable ride typical of luxury cars, the relatively heavy weight for its class means fuel efficiency is somewhat sacrificed, especially with the powerful V8 engine options common in this model. However, the weight also contributes to solid road grip and refined driving dynamics. The car offers smoother cruising at highway speeds, but its size and mass can result in less nimble maneuvering compared to lighter sports cars.

The Cadillac XLR stands out through its unique combination of a retractable hardtop coupe design, aggressive dimensions, and American luxury touches. Its length of 4513 mm (177.6 inches) and width of 1836 mm (72.3 inches) strike a balance between sporty compactness and comfortable luxury space. The car's height of 1279 mm (50.3 inches) is notably low, enhancing its aerodynamic profile and visual presence on the road. The innovative development included premium materials, advanced suspension systems, and a distinctive styling that merged Cadillac’s American heritage with European performance cues, making the XLR a standout in the luxury roadster category from 2003 to 2009.