Luxury full-size SUVs are the most luxurious and capable luxury vehicles on the road, which is why it’s also so important to check how quiet they are! Here at Car Confections, we take a sound-level reading for each large flagship luxury SUV we review so that they can be ranked from quietest to loudest! That includes the most popular models, like the Cadillac Escalade, Mercedes GLS and BMW X7, as well as other great choices like the Lexus LX, Infiniti QX80 and Rivian R1S. So which model is the quietest in the segment? Check out the list below to find out!
| Model Year | Make and Model | Reading (in dB) | Smile Rating | Special Notes | 3rd Row Rating |
|---|---|---|---|---|---|
| 25 | BMW X7 40i | 49.2 | 4 | 5 | |
| 24 | BMW X7 40i | 51.6 | 4 | 4 | |
| 24 | Lexus LX 600 | 52.1 | 3 | 2 | |
| 25 | Infiniti QX80 | 53.7 | 4 | California | 5 |
| 24 | Mercedes GLS 450 | 54.6 | 4 | w/ Acoustic Comfort pkge | 4 |
| 23 | Rivian R1S | 54.8 | 5 | – | |
| 23 | Infiniti QX80 | 55 | 4 | – | |
| 24 | Cadillac Escalade | 55.5 | 4 | 4 | |
| 22 | Lexus LX 600 | 56.2 | 3 | – | |
| 23 | Cadillac Escalade | 56.7 | 4 | 5 | |
| 23 | Cadillac Escalade V | 61.5 | 5 | – |
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