Here’s a plain-English guide to what cars are the quietest, with a list of the calmest cabins you can buy right now.
Skip to:
- Car noise causes
- Why are EVs quieter?
- What cars are quietest? (6 best low-noise vehicles)
- Quiet cars explained
- How to make your car quieter
Car noise causes
Silence in a moving automobile doesn’t happen by accident. It’s engineered.
At speed, the sounds you hear in the cabin come from three big buckets:
- Airflow – wind rushing around mirrors, pillars, wipers, underbody.
- Tires / road – tread ‘pumping’ air, tire cavity resonance, vibration transmitted through suspension)
- Powertrain – engine, exhaust, driveline whine – dramatically lower in EVs
Modern luxury cars attack each of these with a slew of aerodynamics, acoustic glazing, seals, stiff structures, isolation mounts, foam- and felt-backed carpets, and increasingly, active noise-cancellation that generates anti-noise through the speakers to cancel the low-frequency rumble of tires and the road.
Bose calls its version Road Noise Control, and automakers like Hyundai/Genesis deploy similar tech (RANC) that measures vibration and cancels it within milliseconds, trimming interior noise by roughly 3 dB – which the ear perceives as about a halving of loudness at those frequencies.
Why are EVs quieter?
EVs start with a big advantage: No engine pulses. But because engine sound masks other noises, take it away and your ear fixates on wind hiss and tire roar. That’s why the very quietest EVs lean hard on slippery shapes (low drag coefficients) and special tires lined with foam to damp the booming ‘cavity’ resonance inside the tire. Pirelli’s PNCS, Michelin’s Acoustic Technology, and Continental’s ContiSilent are common examples, each claiming meaningful in-cabin reductions (typically a few decibels).
A quick note on measurements: Publications typically report a steady-state cabin sound level at 70 mph. Methodologies and surfaces differ (asphalt texture, wind conditions, tire options), so don’t split hairs over a decibel here or there. Use the numbers comparatively within the same test source.
What cars are quietest? (6 best low-noise vehicles)
So, what cars are quietest? Here we go with a run through 6 of the best low-noise vehicles on the market today.
Rolls-Royce Spectre (EV)
The Electric Roller is a rolling anechoic chamber. Edmunds car dealership recorded just 56.4 dB at a 70-mph cruise – the lowest they’ve ever logged – and 35.9 dB ‘at idle’ (EV stationary). Car and Driver measured 63 dB at 70 mph in a separate test – still whisper-level – and 65 dB at full throttle. Differences reflect test surface and protocol, not a contradiction of the Spectre’s basic serenity. The shape is also exceptionally clean, which helps cut wind hiss.
Why it’s so quiet
- absence of engine pulses
- rigid aluminum spaceframe
- extensive acoustic insulation
- double-glazed glass
- carefully tuned aero (including that re-profiled Spirit of Ecstasy)
- Foam-lined tires
BMW i7 (EV)
Car and Driver measured the i7 at 60 dB at 70 mph. Autocar independently reported 63 dB at 70 mph on UK roads. The car also posts impressively low numbers at higher speeds in third-party data sets. However you slice it, the i7 is among today’s most hushed cabins.
Why it’s so quiet
- EV powertrain
- acoustic laminated glass all around
- thick door seals
- a very stiff body
- comprehensive noise vibration and harshness (NVH) tuning
Mercedes-Benz EQS (EV)
The EQS is famous for its teardrop profile. Car and Driver logged 64 dB at 70 mph, on par with the brand’s S-Class. The EQS’s lozenge body keeps wind rustle at bay.
Why it’s so quiet
- super-low drag body (mirrors, underfloor, and A-pillars obsessively shaped)
- acoustic glass
- isolation mounts
- tires spec’d for low pattern and cavity noise
Genesis G90
Proof that a well-insulated gasoline flagship can run with the best: This car has been tested as one of the quietest luxury sedans. It deploys advanced active noise control in its lineup, and the brand’s corporate cousin (Hyundai/Genesis) pioneered Road Noise Active Control or road-noise cancellation.
Why it’s so quiet
- heavy use of laminated glass
- subframe isolation
- active noise cancellation
- suspension tuned to prevent coarse-surface ‘drumming’
Lexus LS (ICE and hybrid)
The LS has long been a “quietness benchmark.” In recent testing, Car and Driver recorded 67 dB at 70 mph for a 2025 LS500, while a 2024 LS500h was noted for exceptionally low full-throttle noise (70 dB WOT among peers). Not the very quietest at cruise anymore, but still deeply hushed, and often smoother-sounding than rivals.
Why it’s so quiet
- meticulous sealing
- laminated glass
- powertrain mounts
- a tuning philosophy that prioritizes sound quality (not just sound level) so what remains is soft and unobtrusive
Lucid Air (EV)
Lucid obsessively optimized aerodynamics (as low as Cd 0.197 claimed), thermal management, and driveline efficiency. While not every outlet publishes Lucid’s official 70-mph noise figure, its serene highway manner is a recurring theme in reviews. The slippery shape helps keep wind whisper down at speed.
Why it’s so quiet
- ultra-low drag
- careful door/glass sealing
- isolation of the compact drive units
- tires tuned for EV cavity noise
Honorable mentions
Here are a few other SUVs that punch above their weight in the quietness category
- The BMW iX (EV) and Bentley Bentayga (ICE) both appear in round-ups of the quietest tested vehicles. This reflects their strong suppression of wind and road roar despite upright bodies and big tires.
- The Mercedes-Benz EQS SUV (EV) recorded 64-65 dB at 70 mph in Car and Driver’s instrumented testing – impressive given its larger frontal area.
Quiet cars explained
What are the essential elements of quiet cars. Let’s drill down into the features that reduce car noise…
👉 Aerodynamics (kill noise at the source)
Wind noise escalates with speed; at highway pace, aero is king. The quietest EV sedans are also the slipperiest. Lower drag means gentler airflow around mirrors and pillars, fewer vortices, and less ‘hiss’ for the cabin to fight.
Look for these low-noise design features – flush door handles, minuscule panel gaps, underbody smoothing, “teardrop” rooflines, and carefully shaped mirror stalks and A-pillar bases.
👉 Acoustic glass and sealing strategy
Double- or even triple-laminated ‘acoustic’ glazing sandwiches sound-damping layers in the windshield and windows, cutting the high-frequency swish that fatigues the ear. Multiple door seals and gasket geometries make sure tiny leaks don’t whistle.
👉 Tires engineered to be quiet (and the foam inside them)
Class-leading models often wear tires lined with polyurethane foam to damp the ‘tire cavity’ resonance (a drum-like boom radiating through the wheels). Pirelli’s PNCS, Michelin’s Acoustic Technology, and Continental’s ContiSilent each target several dB of reduction in the cabin.
Tread design also matters. Look for fewer “air pumping” edges, variable pitch of tread blocks, and smaller groove volumes reduce the tiny pops that add up to roar.
👉 Body stiffness and isolation
A stiffer shell vibrates less, so it transmits less noise. The quietest models use aluminum spaceframes, cast nodes, and structural foams to elevate stiffness.
Suspension subframes are isolated with bushings to keep tire ‘grit’ out of the passenger cell.
👉 Active noise cancellation for road noise
Borrowed from noise-canceling headphones, automotive RNC / ANC listens via microphones and accelerometers, then plays anti-noise through the speakers. It’s most effective on low-frequency droning.
How to make your car quieter
Finally, some parting advice for making your existing automobile as quiet as possible:
✅ Choose the right tires
If your car offers acoustic-foam tires from the factory, keep that spec. When replacing, ask for PNCS, Acoustic, or ContiSilent variants where available. We’ve put together articles on:
They include links to order the tires on Amazon.
✅ Downsize wheels if you can
Larger diameters with low-profile tires tend to be louder on imperfect pavement (thinner sidewalls transmit more slap).
✅ Mind the aero bits
Roof racks, bike carriers, and even window visors add hiss. Remove them when not needed.
✅ Keep seals healthy
Door and hatch seals harden with age. Replacing tired seals and ensuring doors close flush can restore hush.
✅ Use quiet drive modes
Some cars pipe in ‘engine’ sound or allow sportier tire choices. Comfort/eco modes often keep artificial sounds and harsh shifts out of the cabin.
✅ Consider ANC-equipped trims
If a model line offers Bose RNC or similar, it can cut fatigue on coarse freeways (especially in EVs).
