| Model Year | 2015 | 2011 | |
| Model | Audi A8 / S8 | Lexus IS | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr Sedan | |
| Difference | |||
| Wheelbase | 2,992 mm | 2,731 mm | 0 mm |
| Length | 5,136 mm | 4,575 mm | 1 mm |
| Width | 1,948 mm | 1,801 mm | 0 mm |
| Height | 1,461 mm | 1,425 mm | 0 mm |
| Curb Weight | 1,980 kg | 1,567 kg | 0 kg |
| Fuel Capacity | 82 L | 65 L | 17 L |
| Headroom, Row 1 | 945 mm | 945 mm | 0 mm |
| Shoulder Room, Row 1 | 1,501 mm | 1,382 mm | 0 mm |
| Hip Room, Row 1 | 0 mm | 1,374 mm | -1 mm |
| Legroom, Row 1 | 1,052 mm | 1,115 mm | 0 mm |
| Headroom, Row 2 | 968 mm | 932 mm | 36 mm |
| Shoulder Room, Row 2 | 1,468 mm | 1,339 mm | 0 mm |
| Hip Room, Row 2 | 0 mm | 1,364 mm | -1 mm |
| Legroom, Row 2 | 983 mm | 777 mm | 206 mm |
| Total Legroom | 2,035 mm (over 2 rows) | 1,892 mm (over 2 rows) | 1 mm |
| Cargo Volume | 402 L | 368 L | 34 L |
None of our members have yet commented on the seat room and comfort of the 2015 Audi A8 / S8.
| 2011 Lexus IS Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 2010 | 4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic RWD |
Legroom felt narrow for passenger over tranny tunnel. see full Lexus IS review |
| 2010 | 4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic AWD |
Lousey seats: uncomfortable and build is cheap and not conforming to human posture. But, seems last several years most cars have lousey, cheap and uncomfortable seats. see full Lexus IS review |