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Mercedes C-Class Cabriolet advances to prototype stage

Following up on last month's sighting of the Mercedes-Benz C-Class Coupe, we've got a pretty sizable update on the C-Class Cabriolet, after a prototype of the new droptop was spotted undergoing testing in Germany. A quick comparison with last year's spy photos shows that Mercedes has made a lot of progress, moving on to full-blown production prototypes with a minimal amount of camouflage. Really, though, we already knew what the C-Class Cab would look like – identical to a C-Class sedan below the beltline, although the tail will likely be a bit more sporting – these spy photos merely confirm that. Expect to see the production C-Class Cabriolet debut at (or more likely shortly before) the 2015 Frankfurt Motor Show, where it will appear alongside the next-generation C-Class Coupe. Check out the spy photos up top. Related Video:

Mercedes-Benz C-Class scores well in TUV lifecycle analysis

Mercedes-Benz drivers and treehuggers don't always go hand in hand, but, like a lot of other companies, the German automaker is looking to boost its green cred. This time, it's all about the car's lifecycle carbon footprint. The Daimler AG unit is using its new C-Class sedan as an example of how it's making progress in that department. Mercedes-Benz, citing the inspection authority TUV Sud, says the 2015 C-Class has a 10-percent lower lifecycle carbon footprint than its 2014 predecessor, based on driving about 125,000 miles over the life of the car. About 95 percent of the car (by weight) is recyclable, slightly higher than the average for most vehicles, and the model has upped its amount of recyclable materials up by 23 percent and increased its use of "natural materials" by 55 percent. Better aerodynamics also helps things out on the fuel-economy front, Benz says. Taking a longer view, the 2015 C-Class's carbon footprint is 28 percent better than the 2007 version that launched the vehicle line. The 2015 C-Class hasn't received a fuel-economy rating from the US Environmental Protection Agency, which tagged the 2014 C350 with a combined fuel-efficiency rating of 24 miles per gallon from its 3.5-liter 6-cylinder engine. Check out Mercedes-Benz's press release below and find the Autoblog First Drive impressions here. TUV Environmental Certificate: The new C-Class makes its mark with an exemplary life cycle assessment Stuttgart, Mar 28, 2014 The C-Class sets efficiency benchmarks for its class, helped by an intelligent lightweight concept, excellent aerodynamics and new, frugal engines. The neutral inspectors from the TUV Sud technical inspection authority have confirmed the high level of environmental compatibility of the new Mercedes-Benz C-Class. Besides a sensuous, clean-cut design, a top-class interior and a host of technical innovations, the premium saloon also boasts an exemplary life cycle assessment, which is why it has been awarded the Environmental Certificate in accordance with the ISO 14062 standard. Professor Dr. Herbert Kohler, Chief Environmental Officer at Daimler AG: "Our engineers have pulled out all the stops in an effort to lower fuel consumption while at the same time further accentuating the car's sporty character. By employing an intelligent lightweight design with a high proportion of aluminium, for example, it has been possible to make the new C-Class up to 100 kilograms lighter than its predecessor.

Aston Martin and Mercedes-Benz expand collaboration

Aston Martin on Tuesday expanded a deal with Daimler to access the German automaker's technology, including its hybrid and electric drive systems, in exchange for new shares as the struggling British luxury carmaker's new boss drives changes. The company will place 250 million new shares with new and existing institutional investors at 50 pence (currently around 65 cents) a share, said the 107-year car maker that hired Tobias Moers, former CEO of Mercedes-AMG, to become its boss from August. The new shares issued would increase the size of Mercedes-Benz's stake to no more than 20% by 2023 from the current 2.6% in several stages. "We take another major step forward as our long-term partnership with Mercedes-Benz AG moves to another level with them becoming one of the Company's largest shareholders," said Chairman Lawrence Stroll. The German firm would get the right to nominate one non-executive director to Aston Martin's board after its first shareholding increase. The James Bond car maker, which has started deliveries of its first sport utility vehicle, the DBX, reported third-quarter adjusted core loss of 29 million pounds compared with a profit of 43 million pounds last year and revenue that nearly halved to 124 million pounds. Related Video: