1986 Mercedes Benz 300sdl Inline 6 Turbo Diesel on 2040-cars

Auto blog

VW joins Daimler's protest of new A/C refrigerant as EU deadline for compliance passes

The case of Dupont and Honeywell's refrigerant R-1234yf is doing the exact opposite of keeping things cool. The two chemical companies have spent years and hundreds of millions of dollars developing R-1234yf to replace R-134a, the new refrigerant shown to be 99.7-percent kinder to the environment than the one it is meant to succeed. Part of that development has been years of testing by governments, outside safety agencies and automakers to approve the chemical for use in cars. It passed the protocols necessary for the European Union to declare that new and significantly revised cars from 2013 onward needed to use R-1234yf, and mandated that every car as of 2017 must use it.
Enter Daimler AG. The automaker created a head-on collision test with a B-Class at their Sindelfingen test track that would lead to the pressurized refrigerant being sprayed on the engine. The result in 20 out of 20 test was that the refrigerant burst into flames as soon as it hit the hot engine, while Daimler says that R-134a does not catch fire in the same test. Another unexpected result of the R-1234yf test was the release of hydrogen flouride, a chemical far more deadly to humans than hydrogen cyanide, emitted in such amounts that it that turned the windshield white as it began to eat into the glass.
Said a Daimler engineer in a Reuters piece, "It was scarcely believable. The most complicated lab tests conducted using the most sensitive measuring instruments around found nothing and all we do is drive a car around a couple of times, open a tiny hole in the refrigerant line and the next thing you know the car is on fire." So Daimler said it wouldn't use the refrigerant, and it recalled the cars it had already shipped with R-1234yf.

Mercedes rules out hybrid supercar, promises SLS successor

The recent Geneva Motor Show was a festival of hypercars, with the presence of not one, but three over-the-top debuts: the Lamborghini Veneno, McLaren P1 and Ferrari LeFerrari. The latter two have hitched their carbon fiber bumpers to the electrification bandwagon by using hybrid-electric powertrains not entirely unlike the propulsion systems we've come to know in cars like the Toyota Prius and Chevrolet Volt. Does that mean the flow of electrons up the four-wheeled food chain will eventually consume our hallowed supercars? Not if AMG has anything to say about it.
AMG Director of Vehicle Development Tobias Moers recently confirmed that not only will there be a successor to the Mercedes-Benz performance division's SLS AMG, he notes that its internal combustion engine will most definitely not be sharing living quarters with an electric drivetrain. Instead, AMG plans to focus on further pushing the power and efficiency envelope of the internal combustion engine and advancing the use of lightweight materials to achieve their goals. The first example of this effort can be seen in the new SLS AMG Black Series that incorporates many weight-saving techniques to shed some 154 pounds from the SLS AMG GT (above), which itself is lighter than the standard SLS AMG.
Furthermore, Moers remarks that his company is happy to leave the hypercar segment to companies like Ferrari and McLaren. He admits that, "Ferrari in the hyper-car segment is still a different brand than AMG. We have to be honest..." So rather than taking the SLS further upmarket to do battle with bulls and stallions, Moers hinted that the next-generation SLS may be joined by another performance model that fits neatly between itself and the C63 AMG.

Race recap: 2015 Abu Dhabi Grand Prix is Germany rising as sun sets

Mercedes-AMG Petronas driver Nico Rosberg Rosberg doesn't attribute anything mystical to the form that got him ahead of teammate Lewis Hamilton. He said simply, "Before it was close in the other direction, now it's close in this direction." Mercedes non-executive chairman Niki Lauda went further, saying Rosberg's "brain has switched." Under the desert spotlights it switched so far ahead that Lewis Hamilton qualified nearly four tenths behind the German. Kimi Raikkonen flew the scarlet for Ferrari in third position. Being three spots ahead of Valtteri Bottas gave Raikkonen a huge advantage in locking up fourth position in the driver's championship. Even if he doesn't care about it, as he's publicly stated, Ferrari probably does. Teammate Sebastian Vettel was classified 16th after the German slowed down after making a mistake on his final hot lap, and neither he nor his engineer realized how quickly times were falling on a cooling track. He'd be promoted to 15th when Lotus driver Romain Grosjean was penalized for a gearbox change. Sergio Perez knocked it out of the park for Sahara Force India, claiming fourth ahead of Daniel Ricciardo in fifth for Infiniti Red Bull Racing. Williams driver Bottas was in sixth, in front of the second Force India of Nico Hulkenberg and the second Williams of Felipe Massa in eighth. Daniil Kvyat ensured both Red Bulls were in the top 10 with his ninth position, and Carlos Sainz got the upper hand in qualifying over his Toro Rosso teammate Max Verstappen for the final time this year, rounding out the top 10. Beyond Nico Rosberg's mind, one of his weaknesses was his slow starts. Those are stronger, too, the German tearing off away from the field when the lights went out. Hamilton bogged enough to have to defend from Perez behind, the Mexican trying to slide between Hamilton and Raikkonen on the run to the first corner. Rosberg held the lead into Turn 1 and likewise held it through Turn 21 on the last lap of the race, only ceding it during pit stops. Rosberg's 14th victory gets him level with Graham Hill on the wins list – on the anniversary of Hill's death in a plane crash – and marks the first time in his 10-year F1 career that he's won three races in a row. More proof of his strength: the last few races we haven't heard Rosberg ask for regular updates about what Hamilton's doing, he just drives. Hamilton gave it his best but that wasn't enough.