| Model Year | 2015 | 2023 | |
| Model | Acura RLX | Lexus LS | |
| Engine | 3.5L V6 OHC-4v 231 kW@6500 369 Nm@4500 |
turbocharged 3.5L V6 DOHC-4v 310 kW@6000 599 Nm@1600 |
|
| Transmission | 6-speed shiftable automatic | 10-speed shiftable automatic | |
| Drivetrain | FWD | RWD | |
| Body | 4dr Sedan | 4dr Sedan, ext. | |
| Difference | |||
| Wheelbase | 2,850 mm | 3,124 mm | -1 mm |
| Length | 4,981 mm | 5,235 mm | -1 mm |
| Width | 1,890 mm | 1,900 mm | 0 mm |
| Height | 1,466 mm | 1,450 mm | 0 mm |
| Curb Weight | 1,784 kg | 2,130 kg | -1 kg |
| Fuel Capacity | 70 L | 82 L | -12 L |
| Headroom, Row 1 | 955 mm | 947 mm | 8 mm |
| Shoulder Room, Row 1 | 1,514 mm | 1,494 mm | 0 mm |
| Hip Room, Row 1 | 1,420 mm | 1,410 mm | 0 mm |
| Legroom, Row 1 | 1,074 mm | 1,041 mm | 0 mm |
| Headroom, Row 2 | 937 mm | 947 mm | -10 mm |
| Shoulder Room, Row 2 | 1,448 mm | 1,433 mm | 0 mm |
| Hip Room, Row 2 | 1,384 mm | 1,400 mm | 0 mm |
| Legroom, Row 2 | 986 mm | 988 mm | -2 mm |
| Total Legroom | 2,060 mm (over 2 rows) | 2,029 mm (over 2 rows) | 0 mm |
| Cargo Volume | 433 L | 481 L | -48 L |
None of our members have yet commented on the seat room and comfort of the 2015 Acura RLX.
None of our members have yet commented on the seat room and comfort of the 2023 Lexus LS.