1979 Cadillac Eldorado X Dimensions, Size & Specs

The Cadillac Eldorado X measures 1793 mm (about 70.5 inches) wide. This width is standard for luxury coupes of the late 1970s and early 1980s, providing a broad stance for better highway stability and a comfortable interior space for passengers. However, this width requires careful maneuvering and parking in tight urban spaces, although it remains manageable in most standard parking environments.

The height of the Cadillac Eldorado X ranges from 1378 mm to 1402 mm (54.3 to 55.2 inches). This relatively low profile contributes to its sleek coupe silhouette. In comparison to other coupes from the late 70s and early 80s, the Eldorado X is comparable, offering a balance between aerodynamic styling and interior headroom, enhancing both aesthetics and passenger comfort.

The curb weight of the Cadillac Eldorado X ranges between 1693 kg to 1783 kg (3731 to 3932 lbs). This weight is typical for luxury coupes with substantial bodies and powerful engines from the era. While the substantial weight provides a smooth, solid ride quality and enhanced stability, it also means acceleration and fuel efficiency are moderate by modern standards but consistent with expectations for a luxury car of this vintage.

The Cadillac Eldorado X is equipped with 15-inch rims sized at 6J x 15 and uses tires sized 205/75 R15. These tires have a relatively tall sidewall, which was common in that era, contributing to a more cushioned and comfortable ride by absorbing road imperfections. Additionally, this size offers adequate grip and handling characteristics fitting for a luxury coupe focused on smooth performance over sporty responsiveness.

Yes, the Cadillac Eldorado X can fit into most standard residential garages, although due to its large size, it will occupy most of the garage length and width. Typical garage dimensions are around 2.4 to 3 meters (8 to 10 feet) wide and about 5.5 to 6 meters (18 to 20 feet) deep. Since the Eldorado X is about 5.18 meters (17 feet) long and 1.79 meters (5.9 feet) wide, fitting is possible but will feel tight, particularly if the garage is not custom-sized or has storage items inside.

Compared to its predecessor, the Eldorado X is slightly more compact but still maintains the full-size luxury coupe presence. The previous Eldorado generation (1971–1978) was generally longer, typically close to 5.6 meters (around 220 inches) in length, making the Eldorado X shorter by approximately 30 to 40 cm. The width is also marginally reduced. These changes reflect GM's efforts during the late '70s and early '80s to downsize vehicles for improved fuel economy while retaining luxury and space as much as possible.

The Cadillac Eldorado X and the Lincoln Mark series from the same era are quite comparable in size, both being large American luxury coupes. The Eldorado X's length of about 5.18 meters (204 inches) is slightly shorter than some Lincoln Mark models, which could exceed 5.3 meters (209 inches). The width around 1.79 meters is also similar. Both prioritize roomy interiors and road presence, but the Eldorado X's somewhat smaller footprint was an attempt to balance luxury with emerging fuel economy considerations.

The Cadillac Eldorado X is designed primarily as a two-door luxury coupe with seating capacity for four passengers. Its interior is spacious for a coupe, featuring generous legroom and headroom enabled by the vehicle's wide and long dimensions. The relatively low roofline (around 1380-1400 mm) slightly limits vertical space compared to sedans but is characteristic of stylish coupes from the era, prioritizing a sleek exterior look while still offering comfort for front and rear passengers.

The Cadillac Eldorado X was notable for its transition to a front-wheel-drive layout, aiming for better traction and packaging. It retained its hallmark luxury with plush interior materials, advanced (for the time) electronics, and a smooth V8 engine. Buyers frequently note its balance of classic Cadillac style combined with emerging modern features. The downsizing era also brought improvements in fuel efficiency relative to earlier generations, making it a well-rounded luxury coupe during its production run.