2021 Audi A3 Sedan (8Y) Dimensions, Size & Specs

Production
Model Year:2021
Production Years:2020 - 2024 discontinued in 2024
1425 mm56.1 in4.7 ft
4495 mm177.0 in14.7 ft
1425 mm56.1 in4.7 ft
4495 mm177.0 in14.7 ft
1425 mm56.1 in4.7 ft
1984 mm78.1 in6.5 ft
1425 mm56.1 in4.7 ft
1984 mm78.1 in6.5 ft
1425 mm56.1 in4.7 ft
4495 mm177.0 in14.7 ft
1425 mm56.1 in4.7 ft
1984 mm78.1 in6.5 ft
1425 mm56.1 in4.7 ft
1984 mm78.1 in6.5 ft
Length
4495 mm177.0 in14.7 ft
Width
1984 mm78.1 in6.5 ft
Height
1425 mm56.1 in4.7 ft
Trunk Capacity
390 - 425 liter13.8 - 15.0 cu ft
Technical Details

Exterior Dimensions

Precise measurements of the 2021 Audi A3 Sedan, engineered for optimal performance and comfort

Dimensions
Length:4495 mm177.0 in14.7 ft
Width:1816 mm71.5 in6.0 ft
Width (Opened Mirrors):1984 mm78.1 in6.5 ft
Height:1425 mm56.1 in4.7 ft
Trunk Capacity:390 - 425 liter13.8 - 15.0 cu ft
Weight Specifications
Curb Weight:1225 - 1465 kg2701 - 3230 lbs
Maximal permitted Weight:1775 - 2005 kg3913 - 4420 lbs
Roof Load:75 kg165 lbs
Tire Specifications
Rims Sizes:7J x 16, 7 J x 16, 8J x 17, 8J x 18
Tire Sizes:205/55 R16 91V (W:205 | H:55 | D:16)
205/55 R16 (W:205 | H:55 | D:16)
225/45 R17 (W:225 | H:45 | D:17)
225/40 R18 (W:225 | H:40 | D:18)
Useful Information

About 2021 Audi A3 Sedan

The Audi A3 Sedan (8Y), produced from 2020 to 2024 and model year 2021 onwards, represents the compact luxury sedan segment with a perfect balance of elegance, performance, and practicality. Measuring 4495 mm (176.8 inches) in length, the A3 Sedan offers a sleek yet spacious design suitable for daily commutes and city driving. Its width spans 1816 mm (71.5 inches), extending to 1984 mm (78.1 inches) with mirrors opened, providing a stable stance and comfortable cabin width. The height of 1425 mm (56.1 inches) contributes to its aerodynamic silhouette while maintaining ample headroom inside.

Weighing between 1225 kg and 1465 kg (2701 lbs to 3229 lbs) in curb weight, depending on configuration and equipment, this Audi strikes a balance between lightweight agility and solid build quality. The maximum permissible weight ranges from 1775 kg to 2005 kg (3915 lbs to 4421 lbs), supporting a versatile range of passenger and cargo loads.

Cargo capacity is practical for its class, with luggage space varying between 390 and 425 liters (13.8 to 15.0 cubic feet), ample for everyday needs and weekend journeys. The roof load capacity of 75 kg (165 lbs) adds extra utility for carrying roof boxes or sports gear.

The Audi A3 Sedan rides on rim sizes from 16 to 18 inches (7J x 16 up to 7J x 18), paired with tires sized from 205/55 R16 and 225/40 R18, optimized for a smooth and controlled driving experience. These dimensions and specifications make the Audi A3 Sedan (8Y) a competitive choice among compact luxury sedans, blending German engineering, stylish design, and practical usability.

Exceptional Features

2021 Audi A3 Sedan Highlights

Discover the standout features that make the 2021 Audi A3 Sedan a leader in its class

Engine and Performance

Equipped with a 2.0-liter turbocharged four-cylinder engine producing around 184 horsepower, offering a balance of power and efficiency with available front-wheel drive or quattro all-wheel drive.

Interior and Comfort

Features a modern, driver-centric interior with high-quality materials, available leather upholstery, and configurable ambient lighting for a premium cabin experience.

Technology

Includes the MMI touch display infotainment system with a 10.1-inch touchscreen, Apple CarPlay, Android Auto, Bluetooth connectivity, and available virtual cockpit digital instrument cluster.

Safety Features

Offers advanced safety technologies such as forward collision warning, automatic emergency braking, lane departure warning, and available adaptive cruise control.

Driving Dynamics

Provides precise steering and smooth handling with the option of dynamic steering and a well-tuned suspension for an engaging and comfortable driving experience.
Frequently Asked Questions

FAQ

Have a question? Please check our knowledgebase first.

The Audi A3 Sedan (8Y) has a length of 4495 millimeters (approximately 176.8 inches), a width of 1816 millimeters (about 71.5 inches) excluding mirrors, and a height of 1425 millimeters (around 56.1 inches). When including the side mirrors opened, the width extends to 1984 millimeters (around 78.1 inches). These dimensions make the A3 Sedan a compact yet spacious vehicle suitable for urban and suburban use, balancing interior comfort with manageable exterior proportions.

The curb weight of the Audi A3 Sedan (8Y) ranges from 1225 kg to 1465 kg (approximately 2701 to 3230 pounds). This variability depends on the specific trim, engine type, and installed equipment. A lower curb weight generally results in better acceleration, handling, and fuel efficiency, whereas a higher curb weight could imply additional safety features, luxury options, or more powerful engine variants. This range positions the A3 Sedan competitively within its segment, offering a balance of agility and comfort.

The Audi A3 Sedan (8Y) offers a luggage capacity ranging from 390 to 425 liters (approximately 13.8 to 15 cubic feet). This capacity is quite practical for a premium compact sedan, allowing comfortable storage for everyday needs or weekend trips. Compared to other cars in the compact sedan class, this luggage space is competitive, providing a convenient boot size that balances passenger comfort and cargo accommodation efficiently.

The maximum roof load capacity for the Audi A3 Sedan (8Y) is 75 kilograms (around 165 pounds). This means owners should ensure that the combined weight of roof racks, carriers, and their contents does not exceed this limit to maintain vehicle stability and safety. Overloading the roof can affect handling and fuel efficiency and could potentially damage the vehicle's roof structure. It's essential to check roof rack compatibility with the 8Y model and follow manufacturer's loading guidelines.

With a width of 1816 millimeters (71.5 inches) excluding mirrors and 1984 millimeters (78.1 inches) including opened mirrors, the Audi A3 Sedan (8Y) generally fits comfortably within a standard single-car garage, which usually measures about 2400-2700 millimeters (94.5-106 inches) in width. However, owners should measure their specific garage entrance carefully, especially considering the mirror width, as this is the widest point. Folding mirrors when parking can help maximize space and prevent door or mirror damage.

Compared to its predecessor, the Audi A3 Sedan (8V), the 8Y generation is slightly longer, wider, and lower in height, emphasizing a sportier and more refined design. The 8Y measures 4495 mm in length versus the 8V's length of approximately 4462 mm, providing a modest increase that enhances rear legroom and trunk space. The width also increased slightly to 1816 mm from about 1796 mm, helping improve cabin spaciousness. The lowered height at 1425 mm contributes to a sleek profile and improved aerodynamics while maintaining sufficient headroom.

When compared to rivals such as the BMW 1 Series Sedan and Mercedes-Benz A-Class Sedan, the Audi A3 Sedan (8Y) offers closely matched exterior dimensions with subtle differences. The A3's length at 4495 mm aligns closely with the BMW and Mercedes-Benz models, whose lengths typically range from about 4380 mm to 4550 mm. The width and height are also competitive, with the Audi's 1816 mm width and 1425 mm height offering a balanced stance. In terms of features, the A3 provides advanced infotainment, premium materials, and efficient powertrains, making it a strong contender within the premium compact sedan segment.

The Audi A3 Sedan (8Y) offers a variety of rim sizes including 7J x 16, 7J x 16 (second variant), 8J x 17, 8J x 18, and R18 options. The corresponding tire sizes available are 205/55 R16 91V, 205/55 R16, 225/45 R17, and 225/40 R18. Smaller rims with higher profile tires (like 16-inch) typically provide a smoother and more comfortable ride, absorbing bumps better. Larger rims with lower profile tires (like 17 or 18-inch) enhance handling and responsiveness, offering sportier performance at the expense of some ride comfort. Owners can choose based on their preference for comfort or dynamics.

The Audi A3 Sedan (8Y), produced from 2020 to 2024, is known for combining sporty driving dynamics with premium comfort. It features advanced driver assistance systems, a modern infotainment interface with virtual cockpit, and efficient yet powerful engine options including turbocharged gasoline and diesel variants. The cabin utilizes high-quality materials that enhance the luxury feel. Its balanced chassis tuning offers agile handling with a comfortable ride, making it suitable for both city driving and longer journeys.

The maximum gross vehicle weight rating (GVWR) for the Audi A3 Sedan (8Y) ranges from 1775 kg to 2005 kg (approximately 3914 to 4421 pounds), depending on the variant and equipment. This total weight includes the vehicle itself, passengers, cargo, and any additional equipment. Given a curb weight starting as low as 1225 kg, the vehicle can accommodate a significant payload, supporting up to approximately 550 to 780 kg (1210 to 1720 lbs). This capacity ensures comfortable passenger accommodation with substantial luggage or gear, making it practical for everyday use and travel.

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