Cabin noise at highway speed is one of the clearest measures of how refined a vehicle feels. Edmunds and Car and Driver both test at a steady 70 mph, and the quietest results fall below 60 decibels. Here are eleven hushed cabins, led by an Audi Q8 at just 56.2 decibels.
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1. Audi Q8: Quiet Champion
The 2025 Audi Q8 recorded 56.2 dB at a steady 70 mph in an Edmunds 70-mph measurement, the lowest figure anywhere on this list. Edmunds described the method as conducted at 70 mph with the microphone placed as close to the same point in the vehicle as possible.
That consistent microphone placement matters because it lets the Edmunds numbers be compared fairly with one another. A reading in the mid-50s sets the bar that every other entry here is chasing, and the Q8 clears it by a small but clear margin.
2. Rolls-Royce Spectre: Whisper Coupe
Edmunds recorded 56.4 dB at a 70-mph steady state in the 2024 Rolls-Royce Spectre, a $558,700 electric coupe, as reported in its Edmunds Spectre test. That reading is only 0.2 dB behind the Audi Q8 at the top of the list.
Silence of this kind is a large part of what a half-million-dollar price buys. As an electric car, the Spectre has no engine note to mask, so the low number reflects how little wind and road sound reaches the cabin.
3. Bentley Bentayga: Bentley Hush
The 2025 Bentley Bentayga measured 58.1 dB at a steady 70 mph, according to Edmunds in its Edmunds quietest SUV list. It sits third overall, just behind the Spectre and the Q8 in the same set of Edmunds readings.
Placing a luxury SUV this close to the top shows that a tall, heavy body does not have to mean a loud cabin on the highway. The Edmunds figures all come from the same style of test, so the gap is meaningful.
4. BMW X7: Three-Row Calm
Edmunds measured the 2025 BMW X7 at 58.5 dB at a steady 70 mph, a result published in its Edmunds quietest SUV list. The big three-row SUV lands only 0.4 dB behind the Bentley Bentayga in the same testing.
The result keeps a full-size family hauler within a few decibels of the quietest vehicles in the Edmunds data. For households that spend long hours on interstates, that gap is small enough to matter very little in daily use.
5. BMW iX: Electric Calm
The 2025 BMW iX registered 59.1 dB at a steady 70 mph in the Edmunds test, listed in its Edmunds quietest SUV list. It is the second BMW in a row on the ranking, following the X7 by 0.6 dB.
Being electric, the iX has no engine sound to hide behind, so the reading mostly reflects how well wind and tire noise are kept out. It also shows that a quiet powertrain does not by itself guarantee the quietest cabin.
6. Rolls-Royce Cullinan: Old-Money Quiet
Car and Driver recorded 62 dBA at 70 mph in the 2019 Rolls-Royce Cullinan, using a Bruel and Kjaer Class 1 meter, according to a syndicated Car and Driver dBA list. The test is a 70 mph cruise.
The figure comes from a different publisher, instrument and unit than the Edmunds decibel readings, and from an older model year, so it is not a strict head-to-head comparison. It still places the Cullinan among the hushed.
7. Kia Telluride Hybrid: Hybrid Three-Row
Edmunds measured 63.8 dB at 70 mph in the 2027 Kia Telluride Hybrid SX Prestige, quieter than the Hyundai Palisade Hybrid, in its Edmunds Telluride Hybrid test. The Telluride Hybrid is the first mainstream-badged model on the ranking.
The reading comes from a top-trim test vehicle, and results can shift with trim level, tires and road surface. Even so, it puts a family hybrid within a few decibels of cars that cost far more.
8. Ford F-150 PowerBoost: Quiet Work Truck
Car and Driver recorded 64 dBA at 70 mph in a 2021 Ford F-150 Lariat PowerBoost 4×4 hybrid pickup, as shown in a syndicated Car and Driver dBA list. It is the only pickup truck among the eleven entries.
The result shows that a full-size truck can post a cabin figure in the same range as several SUVs, which a loud work-truck reputation might not suggest. The test year is 2021, so it reflects that specific Lariat configuration.
9. Hyundai Palisade Hybrid: Calligraphy Calm
Edmunds measured 64.9 dB at 70 mph in the 2027 Hyundai Palisade Hybrid Calligraphy, reported in the same Edmunds Telluride Hybrid test as the Kia. That is 1.1 dB louder than the Telluride Hybrid it was compared against.
The two three-row hybrids land very close together in the Edmunds data, which is a reminder that a one-decibel gap is small. The Calligraphy is a top trim, so other versions could read differently.
10. Chevrolet Equinox EV: Affordable Electric
Car and Driver recorded 65 dBA at 70 mph in the 2024 Chevrolet Equinox EV, measured at a 70 mph cruise with a Bruel and Kjaer Class 1 meter, per a syndicated Car and Driver dBA list. The Equinox EV is a mass-market electric model.
It is the most mainstream entry among the electrics here, which makes the number relevant to ordinary shoppers and not only luxury buyers. As with the other Car and Driver entries, the dBA scale is not directly interchangeable with Edmunds dB.
11. Honda Odyssey: Minivan Hush
Car and Driver recorded 66 dBA at 70 mph in the 2025 Honda Odyssey Elite minivan, a result from the same syndicated Car and Driver dBA list as other Car and Driver entries. The Odyssey closes this ranking with the highest reading.
Even so, it still belongs to the group of hushed cabins, and it shows that family haulers can be easy on the ears. The 66 dBA reading was taken in an Elite trim at a 70 mph cruise.
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