2026 Audi A6 Sedan (C9) Dimensions, Size & Specs

The curb weight of the 2026 Audi A6 Sedan (C9) ranges between 1770 kg (3,902 lbs) and 2145 kg (4,729 lbs), depending on the engine and equipment options selected. Heavier variants can provide enhanced stability and ride comfort, while lighter models may offer better fuel efficiency and acceleration. This weight spectrum is typical for executive sedans equipped with advanced technology and luxury features, balancing performance with comfort.

The luggage capacity of the 2026 Audi A6 Sedan (C9) varies from 354 liters (12.5 cubic feet) up to 492 liters (17.4 cubic feet), depending on the rear seat configuration and optional equipment. This provides ample space for everyday items, groceries, and luggage, making it practical for both commuting and longer road trips. The design optimizes cargo area usability, ensuring easy loading and unloading.

Yes, the 2026 Audi A6 Sedan (C9) fits comfortably in a standard residential garage. With a length of 4999 mm (196.7 inches) and width of 1875 mm (73.8 inches) without mirrors, most single-car garages offer sufficient space to park the vehicle with room to open doors and move around it. However, the width with opened mirrors extends to 2099 mm (82.6 inches), so care must be taken in narrow garages to avoid mirror damage.

When the mirrors are opened, the width of the 2026 Audi A6 Sedan (C9) increases to 2099 mm (82.6 inches). This expanded width can make urban driving and parking more challenging, especially in tight spaces or narrow streets. Drivers should exercise caution, particularly in congested city environments or narrow parking garages, to avoid collisions with obstacles or other vehicles.

The 2026 Audi A6 Sedan (C9) offers a range of rim sizes from 17 inches to 21 inches: 7.5J x 17, 8J x 18, 8.5J x 18, 8.5J x 19, 8.5J x 20, and 8.5J x 21. Corresponding tire sizes include 225/60 R17, 225/55 R18, 245/45 R19, 255/40 R20, and 255/35 R21. Larger wheels generally enhance aesthetics and improve cornering stability but may slightly reduce ride comfort. Smaller wheels tend to offer a smoother ride and better fuel efficiency.

Compared to the previous generation, the 2026 Audi A6 Sedan (C9) typically features an increased length approaching 4999 mm (196.7 inches) and a modestly wider stance at 1875 mm (73.8 inches), offering enhanced cabin space and a more commanding road presence. The sleek height of 1452 mm (57.2 inches) typically reflects aerodynamic improvements. These dimensional changes translate to more interior comfort, advanced technology integration, and a refined aesthetic compared to the predecessor.

The 2026 Audi A6 Sedan (C9) competes closely with other executive sedans such as the BMW 5 Series and Mercedes-Benz E-Class. Its length of 4999 mm (196.7 inches) positions it among the longer options in the segment, while the width of 1875 mm (73.8 inches) is comparable or slightly narrower than some rivals. This balance offers a spacious interior without being overly large for daily driving, distinguishing the A6 in its category for versatile luxury and comfort.

The 2026 Audi A6 Sedan (C9) has a maximum roof load capacity of 100 kg (220 lbs). This limit includes the weight of roof racks, cargo boxes, or any mounted equipment. Exceeding this load can adversely affect vehicle dynamics, stability, and roof integrity. For users needing additional carrying capacity, it is essential to stay within this limit to maintain safe handling characteristics and avoid damage.

The maximum authorized weight of the 2026 Audi A6 Sedan (C9) ranges between 2395 kg (5,280 lbs) and 2755 kg (6,071 lbs), depending on the specific model variant. Given a curb weight between 1770 kg (3,902 lbs) and 2145 kg (4,729 lbs), the payload capacity—representing passengers and cargo—provides good utility for an executive sedan. This capacity supports comfortable seating for up to five occupants with luggage while allowing for additional equipment or options without compromising safety or performance.