The current Audi A8 is 5,227 mm long, 1,945 mm wide and 1,477 mm tall, on a 3,041 mm wheelbase. It has grown 19 cm longer since the 1994 A8.
| Years | Length | Width | Height | Wheelbase | Boot capacity | Turning circle |
|---|---|---|---|---|---|---|
| 1994–1999 | 5,034 | 1,880 | 1,439 | 2,882 | 525 | 12.3 |
| 1996–1999 | 5,034 | 1,880 | 1,420 | 2,882 | 525 | 12.4 |
| 1999–2022 | 5,048 | 1,880 | 1,437 | 2,895 | 525 | 12.3 |
| 2002–2010 | 5,106 | 1,894 | 1,449 | 2,999 | 500 | 12.1 |
| 2006–2007 | 5,062 | 1,897 | 1,424 | 2,944 | 500 | 12.1 |
| 2010–2013 | 5,200 | 1,949 | 1,461 | 3,055 | 497 | 12.3 |
| 2012–2017 | 5,136 | 1,949 | 1,458 | 2,994 | 510 | 12.3 |
| 2013–2017 | 5,207 | 1,949 | 1,461 | 3,064 | 492 | 12.3 |
| 2017–2022 | 5,237 | 1,945 | 1,481 | 3,063 | 479 | 12.7 |
| 2020–2022 | 5,179 | 1,945 | 1,474 | 2,998 | 505 | 12.5 |
| 2022–presentCurrent | 5,227 | 1,945 | 1,477 | 3,041 | 428 | 12.5 |
The Audi A8 offers 990 mm of rear legroom and 980 mm of rear headroom, with 1,200 mm of legroom and 1,050 mm of headroom up front. Rear shoulder room measures 1,595 mm across.
| Front | Rear | |
|---|---|---|
| Legroom | 1,200 mm | 990 mm |
| Headroom | 1,050 mm | 980 mm |
| Shoulder room | 1,635 mm | 1,595 mm |
Interior figures are the roomiest measurement (seat fully back), taken as the median across the current generation’s variants; individual trims vary.
Exterior figures are manufacturer specifications for the A8, averaged per generation across its variants and shown for the most common body style. Generations with the same size are merged. Boot capacity is the seats-up figure where the manufacturer quotes one.