2009 Mercedes Benz Gl450 on 2040-cars

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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.

2015 Mercedes-Benz GLA250 4Matic Quick Spin [w/video]

Certain expectations come with the name "Mercedes-Benz." We picture cars with luxuriously appointed interiors, fashionable exteriors, Autobahn-worthy performance, and a ride that delivers an optimal balance between agility and outright comfort. Expectations, though, are no friend to the GLA250. This is a car that is deeply confused as to its purpose in life – can it be a proper Mercedes-Benz while still being a reasonably priced, subcompact crossover? After a week behind the wheel, we believe the two are mutually exclusive. Driving Notes The exterior styling is similar to the not-for-America A-Class hatchback, with the only major differences found on the rear end. That means that even with its flashy 19-inch AMG wheels and sport body styling – more aggressive front and rear fascias – the GLA is a stylish piece. We might even call it cute. Considering our 4Matic model's reasonable $34,225 starting price, the interior treatment is both attractive and uses mostly quality finishes. The matte Satin Light Brown Poplar wood ($325) covers a large portion of the dash, while the real metal found on the air conditioning vents is elegant and handsome. There is a lot of plastic in the cabin: It's soft on the dash, and switches to a piano-black finish in spots, but the center console and door finishers don't feel like they came from the Mercedes parts bin. In general, the GLA's cabin feels roughly equal to that of the Audi Q3 and BMW X1 – nice, but a step lower than what we've come to expect from Mercedes. The two-piece, leather-lined seats look great, but even with standard 14-way adjustability, they lack support. The bottom cushion is very flat, and doesn't support the legs. For this author, that's a recipe for near-constant back pain. That said, the chairs do look good, especially in the brown of this test car. The GLA250, like a few other models in the Mercedes range, uses a 2.0-liter, turbocharged four-cylinder, delivering a weak 208 horsepower. It makes up for that shortcoming with 258 pound-feet of torque from 1,250 rpm to 4,000 rpm. On paper, this sounds good, but in the real world, the 2.0T's power is tough to access. That's due more to the shortcomings of the seven-speed dual-clutch automatic than the engine itself. With three modes – Eco, Sport, and Manual – we thought we'd find at least one that could serve up precise downshifts.

Car subscription services: A slow, expensive start — but the potential is huge

Americans are used to paying for subscriptions — to magazines and cable television, for instance — but experience shows they'll cancel when the price of admission gets too high, or there are more tempting alternatives. Cord cutters ditched nearly 1.5 million pay-TV subscriptions in 2017, according to a survey by Leichtman Research Group. Cable TV started out cheap with basic offerings, and then got expensive. The auto industry's subscription offerings are new, but they're starting out costly, and not price-competitive with traditional leasing. The upside is that they take the hassle out of car ownership for busy people by letting the service take care of maintenance, insurance, licensing and taxes. And they give consumers choice, often allowing relatively painless switches between different cars in the automakers' lineup. Subscription services also point the way toward an ownership-free auto experience, and offer an easy transition to a potential world where ride- and car-sharing will be dominant. Subscriptions are here to stay, but consumers may take a while to "get" them. Lincoln's subscription service for lightly used 2015 to 2017 models, offered through the Ford-owned Canvas beginning this year, got off to a slow start. Many early subscribers canceled. Last month, Cadillac announced it would " temporarily pause" its $1,800-per-month Book subscription service for "adjustments" as of December 1. According to the Wall Street Journal, "Snags with the back-end technology used to support the service made some customer-service functions tedious and time-consuming, adding costs for the company." The challenge for automakers is to come up with a strategy that offers consumers a compelling, affordable option to regular ownership, and one that can also make a profit. I think they'll find that sweet spot, but they're not there yet. Jack Nerad, former executive editorial director at Kelley Blue Book and author of " The Complete Idiot's Guide to Buying or Leasing a Car," points out that "A lot of people expected that subscriptions would be very valuable for people who wanted inexpensive transportation, but the reality is quite the opposite. Subscriptions are offering more choices for the wealthy.