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Mercedes-AMG GT pressed into service as DTM safety car

DTM is one of the most competitive, fast-paced touring car series in the world. So to set the pace, the marshals need a pretty fast car as well. And that's just what they got with the new Mercedes-AMG GT pictured here. Marking its debut at the Lausitzring speedway this weekend, the AMG GT S safety car is based closely on the road-going model, but like the version that's already in use in Formula One, it's been modified for safety-car duty. That means a low-profile light bar mounted to a carbon-fiber air scoop on the roof – both tested in a wind tunnel – as well as the front splitter and rear wing from the optional Aerodynamics package, and the optional upgraded rolling stock. Inside it's got racing buckets, six-point harnesses, a flat-bottom steering wheel, and special radio equipment. Otherwise it's essentially the same as the road-going model, right down to the 4.0-liter twin-turbo V8 and seven-speed dual clutch transmission. After all, with 510 horsepower on tap, it ought to be able to stay out ahead of the 490-hp touring cars currently competing in DTM. The new safety car replaces the C63 AMG Black Series coupe that Mercedes previously contributed to the effort, and will alternate with the vehicles furnished by rivals Audi and BMW from race to race. Related Video: Mercedes-AMG GT S: new Safety Car for the DTM: From Formula 1® to the DTM Affalterbach. A new Safety Car celebrates its DTM premiere: at the second DTM race at the EuroSpeedway Lausitz (29 to 31 May 2015), the Mercedes-AMG GT S is set to be deployed for the very first time. The new sports car will help to ensure maximum safety on the race track in the world's most popular touring car series. In technical terms, the 375 kW (510 hp) eight-cylinder sports car is for the most part the same as the series production vehicle – just like its counterpart from the FIA Formula 1 World Championship™, the Official Safety Car. In its road-going guise the Mercedes-AMG GT S has turned heads since its market launch in March 2015 and now the sports car is also taking to the DTM stage. The new season of the German Touring Car Masters (DTM) got under way during the first weekend of May in Hockenheim. The second DTM race taking place at the EuroSpeedway Lausitz at the end of May will see the Mercedes-AMG GT S make its first appearance as the official Safety Car.

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.

Watch Evo pick its 2015 Car of the Year in this epic video

With just a few days left in 2015, it's the perfect time to check out Evo's annual Car of the Year test to determine the greatest performance vehicle of the last 12 months. The writers' picks for the 11 finalists spanned a breadth of engaging models and included: Peugeot 208 GTi by Peugeot Sport, Lamborghini Aventador SV, Seat Leon Cupra Sub8, McLaren 675LT, Porsche 991 GT3 RS, Porsche Cayman GT4, Honda Civic Type R, Ferrari 488 GTB, Chevrolet Camaro Z/28, Lotus Evora 400, and Mercedes-AMG GT S. For the venue to test the mettle of these performance machines, Evo stuck close to home this year and visited the twisting roads at the beautiful north coast of Scotland. Racing brothers Marino and Dario Franchitti also came along for the ride to provide two more voices in the competitive challenge to determine a winner. Evo's video explains why each model deserves to be among such rarified company but doesn't gloss over their faults either. There can be only one winner, though. We don't want to spoil it, so check out the clip for magnificent views of these performance machines through the Scottish countryside.