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Mercedes-AMG to phase out 5.5-liter V8 after next year [UPDATE]

UPDATE: A previous version of this story indicated that AMG's 6.0-liter twin-turbo V12 was still mated to a five-speed automatic transmission, however the latest models (including the S65 AMG sedan and coupe, SL65 roadster and G65 sport-ute are equipped with the newer seven-speed unit. Mercedes also reached out to point out that the 5.5-liter engine will be phased out gradually, not overnight. There's a lot to love about AMG's 5.5-liter twin-turbo V8. It produces as much as 577 horsepower and 590 pound-feet of torque, and delivers blistering performance to even the heaviest of vehicles. But try not to get too attached, because like its 6.2-liter, naturally aspirated predecessor, it's not long for this world. The latest word comes from Autocar, which reports that Mercedes will release the last applications for the 5.5 biturbo within these next two calendar years in the new GLE63 AMG and upcoming S63 AMG convertible. After that, even though it was only introduced in 2011, it will be phased out. Fortunately Affalterbach has a worthwhile successor already in place in the 4.0-liter twin-turbo V8 from the Mercedes-AMG GT. The smaller powerplant, already in store for the new C63, is already producing 503 hp and 479 lb-ft in S spec. That's still shy of the larger unit's output, but where the 5.5 is nearing the end of its production cycle, the 4.0 is just starting out. Of course the 4.0-liter biturbo isn't the only engine AMG is making these days. Smaller models (based on the front-drive platform) employ the 45-designation, high-output 2.0-liter turbo four. Models at the very top of the lineup, however, use a 6.0-liter twin-turbo V12 that may be a dinosaur, but with 621 hp and 738 lb-ft of torque on tap, still can't be beat.

Daimler says straight up it doesn't cheat on emissions tests

Distancing itself from VW and its diesel emissions scandal, Daimler has put out a statement saying that it has never installed devices on their vehicles that would artificially reduce emissions during a testing process. The company added that it "actively" supports European regulators' efforts to improve emissions-testing methods to better measure emissions during "real" driving conditions. BMW put out a similar statement last week, saying that its diesels are programmed to be tested properly. While Mercedes-Benz diesels were a fixture on US roads in past decades, the company's diesel sales are now concentrated overseas. "We categorically deny the accusation of manipulating emission tests regarding our vehicles," Daimler said in Friday's statement. "A defeat device, a function which illegitimately reduces emissions during testing, has never been and will never be used at Daimler." There's a reason for that sort of straightforward statement. Namely, heads continue to roll at VW after the automaker admitted it manipulated software in its diesel vehicles to pass US emissions testing. VW followed up by saying that as may as 11 million vehicles worldwide may contain that software and has set aside $7.3 billion to address the issue. VW CEO Martin Winterkorn stepped down as well. Take a look at Daimler's press release below. Daimler AG categorically denies any and all allegations of manipulation Stuttgart, Sep 25, 2015 In light of the ongoing assertions from the Deutsche Umwelthilfe (DUH), a non-government organisation, and the related speculation, Daimler AG once again clearly states that: We categorically deny the accusation of manipulating emission tests regarding our vehicles. A defeat device, a function which illegitimately reduces emissions during testing, has never been and will never be used at Daimler. This holds true for both diesel and petrol engines. Our engines meet and adhere to every legal requirement. In light of the written request by the DUH, which was sent to us this morning with a deadline to respond by 3:00 pm (CET), and the seven questions they posed, we can confirm that none of the allegations apply to our vehicles. The technical programming of our engines adheres to all legal requirements. We have no knowledge of measurements that indicate our vehicles did not meet legally required standards.

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.