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Automakers' sound systems: Crank it, don't yank it

Years ago, one of the first things most music lovers did after buying a new vehicle was drive to an aftermarket stereo shop to get the crappy stock components swapped for better gear. And you'd typically get not only better sound but also more bang (and boom) for your buck. But in the past decade or so, the overall quality of OEM audio has dramatically increased, while car electronics became more complex, removing the incentive for most new vehicle owners — and all but the most hardcore DIYer — to start from scratch. In 2010, I did a comparison of the average costs for OEM electronics vs. similar offerings from the aftermarket, and back then automakers' stock premium systems were by far the best bargain — and are probably an even better value now. The premium 14-speaker, 1,200-watt JBL system in the all-new 2019 Toyota Avalon is a prime example of this trend. It's standard on the top two Limited and Touring trims and is available as a $680 audio upgrade on the XLE and XSE. I doubt you can even buy 14 speakers and 1,200 watts of amplification from the aftermarket for 700 bucks, much less have it all installed. And because the system is bundled with Toyota's Entune infotainment system, Apple CarPlay and a surround-view camera, removing the head unit means you would likely lose these features. Another advantage of OEMs and their audio partners is they can design the car around the audio system. In the past, automakers would typically place speakers where convenient for packaging, not for optimal sound reproduction, and audio engineers were forced to compromise. But as with the Avalon's premium JBL audio system, this is starting to change. At a recent behind-the-scenes peek for media into the process of developing the system, Toyota and Harman engineers delved into the minutia of sealing the inner panel of the front doors to create an enclosure for 6x8-inch woofers, making space in the pillars for JBL horn tweeters and extensively measuring the acoustic properties of the interior to tune the sound to the space. I'm met some creative and skilled car stereo installers, but none with a degree in psychoacoustics. The system is also the first to feature Quantum Logic Surround that creates a multi-channel listening experience from two-channel sources. And it includes Harman's Clari-Fi processing that "rebuilds key details lost" in compressed audio formats used by streaming music services and MP3s.

Mercedes GLS updates Silver Star seven-seater

It can be bewildering, the staggering array of crossovers and SUVs offered by Mercedes-Benz. There's the G, the GL, the GLK and the GLA, not to mention the new GLE and the ML that basically started it all. So you can forgive yourself if you've never heard of the GLS. After all, it doesn't currently exist. But it will soon. In accordance with Benz's new nomenclature, the GLS-Class will be the replacement for the GL – the largest of the Mercedes utility vehicles and the only one with three rows of seats. Since the current GL was only launched about two and a half years ago, the new nameplate won't be attached to an all-new model just yet. But as you can see from these spy shots, it appears that Mercedes is preparing a facelifted version of the existing model to fit into the new (or at least renamed) lineup. The biggest changes discernible from these spy shots is the revised front end, with new headlights, a more upright grille and a reshaped bumper and hood to go along with it. Around back the changes are more subtle, with reshaped tail lamps, bumper and exhaust pipes. Inside we're expecting a cleaner center console with a new 8-inch touchscreen reportedly inspired by the iPhone. We don't know when, exactly, to expect the revised GLS to arrive on the scene, but given the relatively modest nature of the revisions and how close they look to being ready, we wouldn't expect it to be long now. Whether those minor changes will be enough to keep up with the all-new Audi Q7 just announced, however, is another matter entirely.

Formula One approves aerodynamic rule changes to promote more passing

LONDON — Formula One has approved aerodynamic rule changes for 2019 aimed at promoting closer racing by making it easier for cars to overtake, the sport's governing body said on Tuesday. The measures include a simplified front wing with a larger span, front brake ducts without winglets and a wider and deeper rear wing. The International Automobile Federation (FIA) said its Formula One commission, Strategy Group and World Motor Sport Council had approved the changes. The changes should reduce turbulence for cars that are following each other, and come after criticism of the lack of overtaking in some races. The FIA said the vote, on the last day before unanimous agreement is required for any 2019 regulation changes, followed research carried out by a majority of the teams and backed by commercial rights holders Liberty Media. "These studies indicated the strong likelihood of a positive impact on racing and overtaking within F1 and as such have now been ratified for implementation in 2019," the statement added. "The approved changes are separate to the ongoing work being undertaken in regard to defining Formula One's regulations for 2021 and beyond." Motorsport.com suggested several teams, including Ferrari and Red Bull, had been opposed to the proposals but were outvoted. Formula One's current agreements with teams expire at the end of 2020 and all parties are discussing what kind of engine and rules should be introduced after that. Liberty want to level the playing field, reduce the costs and introduce a more equal distribution of the revenues. Only three of the 10 teams — Mercedes, Ferrari and Red Bull — have won races in the V6 turbo hybrid era that started in 2014, and Mercedes has so far won every championship. The FIA said it was continuing to evaluate a range of other measures to encourage closer racing. Reporting by Alan BaldwinRelated Video: Image Credit: Reuters Motorsports Ferrari Mercedes-Benz Technology Racing Vehicles F1 fia liberty media