2018 Buick Regal VI Sportback Dimensions, Size & Specs

The Buick Regal VI Sportback weighs approximately 1550 kg (3417 lbs) in curb weight. This weight is fairly moderate for a mid-size coupe, striking a balance between structural integrity, safety, and driving performance. The curb weight affects handling, acceleration, and fuel efficiency. At 1550 kg, the Regal VI Sportback offers a stable and comfortable ride with enough heft to enhance road grip, while still being light enough to maintain responsive handling and decent fuel economy for its class. This weight also supports the car's sporty character, providing a composed and confident driving experience.

The Buick Regal VI Sportback offers a generous luggage capacity of 892 liters (31.5 cubic feet) with the rear seats in the upright position. When the rear seats are folded down, the cargo capacity expands substantially to 1719 liters (60.7 cubic feet), making it highly versatile for larger loads or bulky items. This expansive cargo volume is one of the Regal VI Sportback's strong points, especially for a coupe body style where cargo space can often be limited. The hatchback design facilitates easy loading and unloading, making it practical for daily errands, road trips, or transporting sports equipment.

Yes, the Buick Regal VI Sportback can comfortably fit into a standard residential garage. Most standard single-car garages have internal dimensions around 6 meters (20 feet) in length, 3 meters (10 feet) in width, and about 2.1 to 2.4 meters (7 to 8 feet) in height. With its overall length of 4.9 meters (192.9 inches), width of 1.86 meters (73.3 inches), and height of 1.455 meters (57.3 inches), the Regal VI Sportback is well within these typical garage dimensions. Its size allows for sufficient clearance for opening doors and maneuvering within the garage, making it a convenient vehicle for most home parking situations.

The Buick Regal VI Sportback comes equipped with 18-inch rims fitted with 245/45 R18 tires, a combination that balances aesthetics, performance, and ride comfort. The 18-inch wheel size offers a sporty look with a low profile tire sidewall that enhances road feedback and handling precision. The tire width of 245 mm provides a substantial contact patch with the road, improving grip in both dry and wet conditions, which aids in cornering stability and braking performance. The 45 aspect ratio offers enough sidewall height to buffer ride quality, absorbing road imperfections without compromising agility. Overall, this wheel and tire setup complements the Regal VI Sportback's sporty coupe demeanor and delivers balanced dynamics.

Compared to the previous generation Buick Regal, the Regal VI Sportback maintains a similar length but refines exterior dimensions for a sportier and more aerodynamic profile. The 2018-2020 Regal VI measures 4900 mm (192.9 inches) long, which is comparable to the earlier model, but the Sportback's sleek coupe styling reduces overall height and offers a wider stance at 1862 mm (73.3 inches) wide. This results in a more aggressive and contemporary look with improved road presence. Interior space remains practical, and the hatchback design enhances cargo versatility versus the more traditional sedan trunk of its predecessor. The refinements allow for a sportier driving feel while retaining comfort and utility.

In the competitive segment of mid-size sporty coupes, the Buick Regal VI Sportback holds its own with its well-rounded size and cargo capacity. With a length of 4900 mm (192.9 inches) and width of 1862 mm (73.3 inches), it is slightly larger than some sport coupes like the Audi A5 Sportback or BMW 4 Series Gran Coupe, which tend to be shorter and narrower. However, the Regal's hatchback design gives it a significant advantage in cargo space—892 liters (31.5 cubic feet) with seats up and 1719 liters (60.7 cubic feet) folded—considerably more than competitors' trunk volumes. This makes the Regal VI Sportback not only sporty and stylish but also highly practical for daily use and longer trips.

The Buick Regal VI Sportback is designed to offer a spacious and comfortable interior for a coupe in its class. Thanks to its extended length (4900 mm) and wider body (1862 mm), the cabin provides ample shoulder and legroom for four passengers. The Sportback model’s sleek roofline is balanced carefully to maintain headroom in both front and rear seats, ensuring passengers in the rear do not feel cramped—a common challenge in coupe designs. Additionally, quality materials and thoughtful ergonomics contribute to a refined experience, making the Regal VI Sportback suitable for both spirited drives and comfortable daily commuting.

While the Buick Regal VI Sportback is classified as a coupe, its Sportback (hatchback) design improves usability and practicality compared to traditional two-door coupes. It offers four doors with more accessible rear seating and a roomy cabin that fits small families comfortably. The generous luggage capacity—892 liters (31.5 cubic feet) with seats up and up to 1719 liters (60.7 cubic feet) when folded—supports the transportation of strollers, groceries, luggage, and sports gear, which is a significant advantage for families. However, being a coupe, rear seat accessibility may not be as convenient as a sedan or SUV, so while practical, it may suit smaller families or those valuing style alongside moderate versatility.

The Buick Regal VI Sportback stands out within the Buick lineup through its distinctive coupe styling combined with hatchback practicality. Unlike the more traditional Buick sedans or SUVs, the Regal VI Sportback features a sleek fastback roofline that flows smoothly from the windshield to the rear, creating a sporty and elegant silhouette. The large rear hatch enhances cargo versatility, a feature uncommon in many sporting coupes. Additionally, it incorporates contemporary design cues such as bold front grille styling, sculpted body panels, and premium alloy wheels that reflect its blend of luxury and sportiness. This generation was positioned to attract buyers seeking an upscale yet dynamic vehicle experience.