2003 Sl500 1 Calif. Owner 48,000 Miles Amg Wheels Black / Black Beauty Calif. on 2040-cars

Auto blog

Mercedes F1 to use Qualcomm 5 GHz WiFi for its tire data

In Formula 1 you need more of everything. More speed, more grip, more hospitality, more money. And you need data, reams and reams of data. The Mercedes-AMG Formula 1 team – the guys with the silver cars driven by 2015 F1 champion Lewis Hamilton and his teammate Nico Rosberg – need so much information that they've teamed with Qualcomm to wirelessly upload thermal imaging data of its tires. During a typical race weekend Mercedes's two racecars will generate approximately half a terabyte of data. Live telemetry has been a feature of Formula 1 for 20 years, though there are more restrictions on it than in the past. (In the days leading up to last weekend's United States Grand Prix in Texas, Formula 1 major domo Bernie Ecclestone said that F1 needs to cease being an engineering war and return more responsibility to the drivers.) Nevertheless, F1 teams gather vast amounts of data during a race weekend, particularly in practice sessions during which restrictions on what they can upload from cars – from engine/power unit parameters to aerodynamic loads – are less prohibitive. For example, during a typical race weekend Mercedes's two racecars will generate approximately half a terabyte of data. Mercedes F1 technical director Paddy Lowe points out that the standard telemetry system simply doesn't have the bandwidth to handle the thermal tire imaging data that the onboard thermal cameras generate. Why do you want a thermal video of the tires? Because it tells the engineers and drivers precisely how much temperature there is across the surface of a tire during a lap, in corners and on the straights. It also indicates how quickly the tires come up to temperature and when they potentially overheat. Understanding the temperature variations allows the team to set the cars up optimally for grip and tire life during a stint. Qualcomm's system works with the race cars like this: Each car has forward- and rear-facing cameras in a winglet mounted on the left side of the engine intake behind the driver's head, which continuously record thermal images of the tires. As a Mercedes enters the pit lane, it passes a Qualcomm 802.11ac WiFi receiver to which it uploads the thermal data. As the car nears the garage, another receiver takes over the upload. Several Qualcomm Snapdragon 805 processors crunch the raw data as it uploads. The data is encrypted – there are always prying eyes in Formula 1.

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 moves R-Class production to AM General in Indiana

Go back a decade or two and you'd have seen the SUV market polarizing in opposite directions: hard-core off-roaders like the Hummer on the one hand, and passenger-focused crossovers like the Mercedes R-Class on the other. Now their fates are set to intertwine, at least as far as manufacturing is concerned. No longer producing Hummers, AM General (which designed and originally produced the Hummer) has been assigned the task of manufacturing the R-Class at its underused, 675,000 square-foot Commercial Assembly Plant in Mishawaka, IN – part of metropolitan South Bend. The decision was undertaken to allow Mercedes to free up production capacity at its plant in Tuscaloosa, AL, where it also produces the M-Class, GL-Class and C-Class, and where it will soon begin manufacturing the GLE Coupe. The vacation of the R-Class assembly line could be earmarked to make room for that new slant-roofed crossover (which was originally thought to be joining the Tuscaloosa plant as a fifth model) or could pave the way for another model to reach Alabama altogether. The multi-year arrangement to manufacture the R-Class makes AM General the first manufacturer contracted to build Mercedes-Benz vehicles in the US, but hardly the only one in the world. The G-Class – which could, incidentally, be characterized as the German equivalent of the Hummer – is built on Mercedes' behalf by Magna Steyr in Austria, and the company builds many of its passenger and commercial vehicles for local consumption under joint ventures in the Far East especially. The R-Class was first introduced in 2005, and though it's still built in America, it was removed from the company's US lineup back in 2012. However Mercedes confirms that, since 2013, it has been and remains available exclusively in China. That puts the R-Class in the rare position of being manufactured in the United States by (or now for) a foreign automaker but unavailable for sale here. AM General Selected As Mercedes-Benz First and Only Contract Manufacturer of Vehicles in the United States SOUTH BEND, Ind., Jan. 27, 2015 /PRNewswire/ -- AM General LLC and Mercedes-Benz U.S. International, Inc., today announced that Mercedes-Benz has selected AM General to manufacture the Mercedes-Benz R-Class luxury vehicle at AM General's world-class 675,000 square-foot Commercial Assembly Plant.