1990 Cadillac Allante Dimensions, Size & Specs

The 1990 Cadillac Allante has a curb weight of approximately 1700 kg (3748 lbs). This weight reflects the luxury features, build quality, and structural reinforcements necessary for a cabriolet vehicle. While it is relatively heavy compared to sports coupes of the time, its well-tuned suspension and Cadillac’s engineering help balance comfort and handling. The weight makes it stable at high speeds but slightly less nimble compared to lighter competitors.

The 1990 Cadillac Allante offers a luggage capacity of 460 liters (approximately 16.2 cubic feet). For a luxury convertible, this is a generous amount of storage space, making it practical for weekend getaways or longer trips despite its sporty design. The sizable trunk accommodates multiple suitcases or golf clubs, enhancing its usability beyond a typical two-seat roadster.

The tire sizes for the 1990 Cadillac Allante are 225/55 VR16 on one axle and 225/60 R16 on the other. These sizes support strong grip and comfortable ride quality. The 16-inch wheels contribute to a balance between sporty handling and luxury ride comfort, with tire profiles that absorb road imperfections while maintaining confident cornering behavior.

With its length of 4540 mm (178.7 inches), width of 1865 mm (73.4 inches), and height of 1310 mm (51.6 inches), the 1990 Cadillac Allante fits comfortably within a standard garage. Most single-car garages have minimum dimensions around 2400 mm by 4800 mm (8 feet by 16 feet), allowing enough clearance for doors and safe parking. Owners should be mindful of door opening width due to the vehicle’s width but overall, it accommodates typical garage spaces without issue.

The 1990 Cadillac Allante is the original and only generation of this model, produced from 1989 to 1996, so there is no predecessor generation for direct size comparison. However, it was designed as a niche luxury roadster to compete with European convertibles, bringing Cadillac's styling and engineering into a sporty yet comfortable package. Its dimensions reflect a balance tailored to its segment rather than evolving from earlier Allante versions.

Compared to similar luxury convertibles from the early 1990s, such as the Mercedes-Benz SL-Class and the BMW 8 Series Convertible, the Cadillac Allante is comparable in length and width but slightly lower in height. Its 4540 mm length and 1865 mm width place it firmly in the luxury roadster class, offering competitive luggage capacity and a low-slung, sleek design. The Allante’s American luxury emphasis on comfort and spaciousness contrasts with the sportier European rivals, blending both attributes.

Although specific interior dimensions aren't detailed here, the Cadillac Allante is designed as a two-seater luxury convertible with ample headroom and legroom for both driver and passenger thanks to its 1310 mm (51.6 inches) height and elongated body style. The well-appointed cabin emphasizes comfort with plush seating and ergonomic controls, making it suitable for long drives with a spacious and airy feel enhanced by its convertible top.

While exact fuel capacity and fuel efficiency figures are model variant dependent, the 1990 Cadillac Allante typically has a fuel tank capacity around 70 liters (18.5 gallons), providing ample range for cruising. Fuel efficiency aligns with luxury convertibles of that era, generally averaging between 10-13 liters per 100 kilometers (18-23 miles per gallon) depending on driving conditions, engine choice, and maintenance.

The 1990 Cadillac Allante came equipped with advanced features for its time, including anti-lock brakes (ABS), power-assisted steering, and traction control on certain trims. Its construction incorporated safety reinforcements typical of luxury convertibles, and the electronic systems focused on driver comfort and convenience, like power windows, premium audio systems, and climate control. These features collectively enhanced both safety and driving enjoyment in its competitive class.