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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-Benz engines with 48-volt systems coming in 2017

As part of a big green push announced yesterday, Mercedes-Benz is jumping into the world of 48-volt power. The company will launch a new family of efficient gasoline engines next year and will begin rolling out 48-volt systems with it, likely in its more expensive cars first. Mercedes will use the 48-volt systems to power mild-hybrid functions like energy recuperation (commonly called brake regeneration), engine stop-start, electric boost, and even moving a car from a stop on electric power alone. These features will be enabled through either an integrated starter-generator (Mercedes abbreviates it ISG) or a belt-driven generator (RSG). (RSG is from the German word for belt-driven generator, Riemenstartergeneratoren. That's your language lesson for the day.) Mercedes didn't offer many other details on the new family of engines. There are 48-volt systems already in production; Audi's three-compressor SQ7 engine uses an electric supercharger run by a 48-volt system, and there's a new SQ5 diesel on the horizon that will use a similar setup with the medium-voltage system. Electric superchargers require a lot of juice, which can be fed by either a supercapacitor or batteries in a 48-volt system. Why 48-volt Matters: Current hybrid and battery-electric vehicles make use of very high voltages in their batteries, motors, and the wiring that connects them, usually around 200 to 600 volts. The high voltage gives them enough power to move a big vehicle, but it also creates safety issues. The way to mitigate those safety issues is with added equipment, and that increases both cost and weight. You can see where this is going. By switching to a 48-volt system, the high-voltage issues go away and the electrical architecture benefits from four times the voltage of a normal vehicle system and uses the same current, providing four times the power. The electrical architecture will cost more than a 12-volt system but less than the complex and more dangerous systems in current electrified vehicles. The added cost makes sense now because automakers are running out of ways to wisely spend money for efficiency gains. Cars can retain a cheaper 12-volt battery for lower-power accessories and run the high-draw systems on the 48-volt circuit. The industry is moving toward 48-volt power, with the SAE working on a standard for the systems and Delphi claiming a 10-percent increase in fuel economy for cars that make the switch.

Mercedes-Benz S500 Plug-in Hybrid ready for 'major role' in urban areas

We finally got a clear look at the Mercedes-Benz S500 Plug-in Hybrid at the Frankfurt Motor Show last fall, but it took until this week to learn what the vision (see what we did there) is that Mercedes-Benz has for the PHEV. Despite it's generous size, Mercedes thinks this is a vehicle that will work well in urban areas. Speaking to members of the media during the Detroit Auto Show, Thomas Weber, Daimler AG management board member and research and development chief for Mercedes-Benz cars, said that the S500 PHEV, "will play a major role in congested areas" and that it will offer "a lot of driving pleasure." Part of that pleasure will come from a 0-62 mile-per-hour time of around 5.5 seconds thanks to a turbocharged, 3.0-liter V6 and an 80-kilowatt electric motor. The PHEV also has a 19-mile EV range, which will put it at the bottom end of the Three-Pointed star plug-in lineup. The upcoming C-Class plug-in, for example, will likely go, "closer to 50 km [31 miles]," Weber said, according to Green Car Reports. The S500 PHEV will go on sale in Europe later this year and will come to the US in early 2015 but there is no timeline, yet, for the C-Class plug-in (and the standard gas-electric hybrid version) or the even-more-future E-Class hybrids. Featured Gallery 2014 Mercedes-Benz S500 Plug-in Hybrid: Frankfurt 2013 View 22 Photos News Source: Green Car ReportsImage Credit: 2014 Jonathon Ramsey / AOL Green Detroit Auto Show Mercedes-Benz Electric Hybrid PHEV s500