What are the differences between the A7 and A6?

[StDavid]

Here are the differences between the A7 and A6: 1. Different appearances: (1) The dimensions of the Audi A7 are length × width × height (mm) 4976 × 1908 × 1405. In terms of appearance, the Audi A7 has a more youthful and dynamic design, appearing more aggressive compared to the moderate and restrained look of the Audi A6L. The coupe-style body combined with frameless doors adds a touch of sophistication, and the hatchback-style trunk is also very attractive, appealing more to consumers who pursue individuality. The sporty feel created by the overall appearance is something the Audi A6 lacks. (2) The dimensions of the Audi A6 are length × width × height (mm) 5038 × 1886 × 1475. 2. Different tire sizes: (1) The Audi A7 tire specification is 245/45R19. (2) The Audi A6 tire specification is 225/55R18.

[LeMicah]

I've driven the Audi A7 and A6 several times with friends, and the main differences seem to lie in their exterior designs: The A7 features a fastback silhouette with a more streamlined, low-slung body, exuding a sporty and fashionable vibe that turns heads on the street. In contrast, the A6 follows the traditional three-box sedan design, with cleaner, more restrained lines suited for business settings. Dimensionally, the A7 is slightly shorter but sits lower, resulting in tighter rear headroom, and while its trunk is deeper, the opening is less practical than the A6's. Both share similar engines, but the A7 is tuned for sportier performance, offering quicker acceleration at the cost of slightly higher fuel consumption. Typically priced a few ten-thousands higher than the A6, they target different buyers—the A7 appeals to trendy younger drivers seeking individuality, while the A6 caters to families or understated professionals prioritizing comfort. On the road, the A7 feels stable during high-speed cornering but trails the A6's composed suspension on bumpy roads. Overall, the A7 is full of character yet sacrifices some everyday convenience, whereas the A6 strikes a more balanced, practical note—the choice ultimately depends on personal preference and lifestyle needs.