Rolls-Royce used to advertise the fact that their cars were so quiet that the loudest sound you heard was the [analog] clock ticking on the dash. Who said the British don’t do hyperbole? As a quiet car connoisseur, I’d have to say a Clinton-era Cadillac provided the quietest ride I’d ever experienced; if the time was one of peace and prosperity, then so was the car. Nowadays, automakers are telling us that their cars are quiet, or at least quieter than ever before. I’m not buying it. A number of recent drives have been notable for their aural uncouthness. So I set out to find the truth about automotive sonic signatures. Has nostalgia dimmed my memory (if not my hearing)? Is progress on the noise suppression front been less impressive than industry propaganda would have you believe?
The German buff book Auto, Motor und Sport recently opened its archives to tightwads. I’ve spent a few hours perusing the decibel stats. To save space, the table I’ve compiled only deals with interior noise at about 80 mph (130 km/h). It’s a civilized speed (at least here in Germany) at which one would want to be able to hold a civilized conversation, even with a back-seat passenger.
Car and model year Interior noise in dB(A) at 80.78 MPH
1995 BMW 728i 66
1995 BMW 523i 66
2003 BMW 730i 66
2009 BMW 330d 68
2009 Mercedes C350 CGI 68
2009 Renault Megane dCI 69
1996 Mercedes C280 69
2008 Mercedes C250 CDI 69
1996 Citroen XM V6 69
1995 Audi A6 2.8 69
2006 Mercedes E220 CDI 69
2006 BMW 520d 69
2000 Ford Mondeo 2.016V 69
2009 Ford Mondeo 2.5 Titanium S 70
2006 Audi A6 2.7 TDI 70
1996 Mercedes E230 T 71
2003 Toyota Camry 2.2 71
2009 Toyota Auris 2.0 D-4D 71
1995 Honda Civic 1.5i VTEC-E 72
2009 Honda Civic 2.2i-CTDi 72
2002 VW Golf 1.9 TDI 72
2009 VW Golf 2.0 TDI 72
2009 Opel Astra 1.9 CDTi 72
1996 Opel Astra 1.6 16V 73
2003 Toyota Corolla Compact 1.4 73
2009 Porsche Carrera 73
1995 VW Golf Cabrio 1.9TDI 73
1996 Ford Mondeo 1.8GT 73
1995 VW Golf CL 1.6 74
1995 Mercedes E230 74
2000 Toyota Corolla 1.6 76
2009 Ford Ka 76
1996 Renault Megane 2.0 16v 76
In some market segments (e.g., executive cars), you have to ask: where’s the progress? What, for instance, has BMW been doing since 1995? Most cars have gotten much heavier. You think that the extra heft might include some extra soundproofing. But plenty of today;s lumbering leviathans are hardly quieter than their sprightlier predecessors. What does Mercedes expect us to think about zero improvement for the C-Class in twelve years?
VW’s press release for its newest Golf calls it “the quietest Volkswagen Golf since the model series began” characterized by “first-class acoustic properties.” Yes, “a special sound-damping film in the windshield reduces driving noises, as does the newly developed seal design on the doors and side window guides.”
Significantly less wind noise is generated by the outside mirrors due to their new shape. Furthermore, special modifications were made to better isolate the engine and passenger compartments from one another acoustically. Quiet rolling tires and new engine bearings round out the noise reduction program.
Empirically, the new Golf offers an improvement of 2 dB in three car generations and thirteen years.
Small cars have gotten much better, though. Corollas and Renaults used to be noisy boxes. Intense competition in the compact field seems to be working its magic. The Auris (the more-advanced, Euro-market Corolla) is a quite soothing small car, and the Megane’s low level of noise is a marvel.
Really small cars, like the Fiat Panda or the Ford Ka, are still noisy, and are thus for me un-purchasable vehicles, since they (driven quickly) generate a clamor louder than Occupational Noise Exposure standards would allow.
A noise level of 70 dB(A) seems to be hard to crack in cars for regular folks. But this is, to my mind, a pretty tolerable loudness, unreachable a few decades ago.
You’d think with advanced computer firepower, more precise manufacturing tolerances, double-lip door seals and multi-laminate windows, cars would generally be much quieter than in the 1990s. Why aren’t they? Remember one dirty secret of the car industry: usually, each successive generation of a car is cheaper to manufacture. Cost-cutting means that progress is slow—unless the market actively demands progress.
Or unless the car maker is genuinely forward-thinking. In terms of quietness, the only revolutionary car in recent years may be the Lexus LS 600h, which claims 60db at 60MPH.
On the other hand, where are the technical advancements we’ve been waiting for? Active noise cancellation, once seen as the answer to all things cacophonous and found in Honda’s cylinder de-activating Odyssey minivan, seems to be a pipe dream. This despite the fact that BOSE et al. have been promoting its benefits for years, and Germany’s Fraunhofer Institute says it’s working on a useful system.
And what about a microphone-based, user-friendly and effective interior intercom? I’m tired of shouting at back-seat passengers (although it can be useful in the case of children, dogs and back-seat drivers). A car that used electronics to help you converse with everybody on board, without raising your voice: now, that’s something that would lead me to a showroom, and to ponder a purchase.


















1. How can Fisker manage to offer a stylish, luxurious, large (124.4-inch wheelbase, 196.3-inch length, 78.1-inch width) four-door car with a powerful hybrid powertrain (260 horsepower turbo four plus a pair of electric motors good for 400 horsepower) and monstrous 22-inch tires for conventional S-Class money? (Base price: $87,900)
Well, the first day at the 2009 North American International Auto Show wasn’t such a bust in the end. I began the day by attending the Intro and North American Car of the Year Awards. During the intro talk the Detroit show sought to demonstrate that it was still relevant by trotting out senior executives from the auto companies that didn’t opt to skip this year’s show. Among the execs from GM, Ford, Toyota, Honda, VW, and so forth was… Henrik Fisker. “Which one of these is not like the others…” started running through my head. Pretty good for a guy who reskinned SL’s and 8’s until he figured out it was better to ride the green gravy train. But that’s the way Detroit rolls these days.
Some of the new GM cars were surprisingly impressive. The interior of the 2010 Equinox compact SUV is the best interior in a Chevrolet so far. It’s much nicer than that in a Toyota RAV4, and I’d also place it ahead of the Honda CR-V. Seat comfort is also excellent, front and rear. Why aren’t the seats in the larger Lambda crossovers nearly this good?
I actually found the firmer seats in the Cadillac SRX less comfortable than those in the Chevrolet. There’s also less rear seat and cargo room in the SRX. Overall, while the Cadillac’s interior is nicer than the Chevrolet’s, it will also be much more expensive. I expect the Cadillac will have a much harder time achieving its sales targets.
The new Buick LaCrosse is a mixed bag. The exterior doesn’t quite work for me. The “sweep spear” comes up too high on the overly tall front fender. As a result, your eye is pulled in one direction by the beltline (base of the windows) and in the other by the “sweep spear.” Beyond this, the proportions of the front fender are generally forced and awkward.
On the other hand, the interior of the new LaCrosse is outstanding, the best yet from GM– better even than that in the Cadillac CTS. Real stitching on the instrument panel and door panels has been achieved at a Buick price by molding the stitching into the polymer panels. The panels aren’t actually upholstered as they are in newer Cadillacs, but they look upholstered. The center stack is nicely executed, with a definite upscale appearance. The curvy door panels are exceedingly well done. They combine a nicely padded armrest with a comfortable door pull, flowing organically into the instrument panel.
Looking back across the GM area, I wondered what a previous generation Audi A4 was doing there. Another case of mistaken identity: the Chevrolet Cruze. In the metal, the Cruze looks great– at least when it’s fitted with 19-inch five-spoke alloy rims. Inside, the instrument panel in the Cruze is trimmed in a woven fabric. This might not be to everyone’s taste, but it’s a huge step up from most compact car interiors.
Ford has thoroughly revised the Taurus. The new car looks much more upscale, inside and out. Though the new grille is a bit too Subaru nondescript, the rear fenders have strong Bentley overtones. Viewed from the side the car has more presence than a Taurus has any right to.
The interior of the 2010 Ford Taurus is not far off the related Lincoln MKS’, but not up to the level of the Buick LaCrosse. The panel fits aren’t as tight or as precise, and the materials seem a bit cheaper. I was surprised to hear that features such as adaptive cruise control and massaging seats– usually only available on expensive luxury cars– will be available on the Taurus. On the downside, the interior is much less roomy than that of the current Taurus. Inside, it does not feel like a full-size car.
I skipped the Chrysler presentation, figuring the company had nothing in the pipeline. I later learned they’d shown a possible next-generation 300, billed as the 200C EV with an alt fuel powertrain. This concept’s much more curvy than the current 300; a huge advance over recent Chrysler efforts like the Sebring. But is there enough trunk space inside the sportily bobbed tail?



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