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Mercedes G63 vs. BMW i8: Our silly drag race between the past and future

You see, we were just trying to conserve resources. We had Milan Dragway rented for a test of the AMS Alpha 10 Audi R8, and there was some extra track time, so we brought these two along. That's called saving money. Or something. Aside from being German, the G63 and i8 couldn't really be much more different – one is a prehistoric military vehicle with a nutty twin-turbo V8, the other a vision of the near future of efficient sports cars. So what did we do? We lined them up against each other, editor-in-chief Michael Austin in the i8 and me in the G-Wagen. Though we had a good idea of the likely winner – note which car the boss is driving – the results were still surprising. Watch for yourself above. Green Humor BMW Mercedes-Benz Coupe SUV Hybrid Luxury Performance Videos Original Video drag race milan dragway

Lewis Hamilton needs to step up in his 200th F1 race

LONDON — Lewis Hamilton will start the 200th grand prix of his Formula One career in Belgium this weekend, but the triple world champion has smaller but more significant numbers on his mind. Refreshed from an August break in the Caribbean, including a trip to Cuba in his role as UNICEF ambassador, the Mercedes driver is 14 points behind championship leader Sebastian Vettel as he revs up for the second half of the season. A fifth victory of 2017 for the Briton would put the pressure back on Ferrari's Vettel, and Hamilton can celebrate another milestone by bagging pole position on Saturday at the long and fast Spa-Francorchamps circuit. That would see Hamilton, who sportingly relinquished third place to team mate Valtteri Bottas in Hungary before the summer shutdown, match the record of 68 poles set by Michael Schumacher with Ferrari in 2006. Mercedes has won the last two Belgian Grands Prix, with now-retired 2016 world champion Nico Rosberg triumphant from pole last year after Hamilton won in 2015. Nobody will be taking anything for granted, however, after Ferrari's one-two win in Budapest at the end of July. "On paper, people will assume that Spa should suit our car because it is a circuit where aerodynamic efficiency is extremely important," Mercedes team boss Toto Wolff said. "But assumptions are dangerous — we have seen too many times already this season that the form book can be rewritten from one weekend to the next. So we will be making no assumptions." Hamilton has won twice before at Spa, as has Vettel, but the track — a classic blast from the past — has not been particularly kind to him. In 2008, when he won his first title, the Briton was demoted from first to third after the race for cutting a chicane, with then Ferrari rival Felipe Massa savoring victory instead. Spa can often be a lottery, with its capricious weather, and rain could be a boon for Red Bull's Belgian-born Dutch teenager Max Verstappen, who can count on plenty of local support in what amounts to a home race. "I just love the track and it'll be nice seeing so many orange (Dutch) fans in the grandstands," he said. "Spa is my favorite track of the year. You have to get everything right but when you get a good lap it's very rewarding." Belgium could also be good for Ferrari's Kimi Raikkonen, who arrives with a new contract for 2018 in his pocket.

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.