2002 Mercedes Benz C240 on 2040-cars

Auto blog

Mercedes Concept IAA shows its mighty morphing aero aids

Modern supercars are utilizing more active aerodynamic elements that constantly adjust, to make them some of the fastest things on the road. The Mercedes-Benz Concept Intelligent Aerodynamic Automobile is using them too, but the know-how is applied here for ultimate efficiency rather than turning better lap times. In the standard design mode, the four-door luxury coupe looks like a CLS from the near future with styling that's mixed with a little of the F 015 concept. However at the press of a button or upon hitting about 50 miles per hour, the IAA transforms into aero mode to have an insanely low drag coefficent of just 0.19. To achieve the ultra-efficient shape, the rear of the concept stretches over 15 inches to guide air down the tail. Flaps in the bumpers also extend outward, and the wheels adjust to improve the flow around the sides. To trim things out underneath, a portion inside the front bumper moves, as well. Inside, passengers sit in organically shaped leather seats, but occupants have to look at a vast array of purple and blue LED accent lights. The big panoramic roof is a nice touch, though. It would be interesting to watch water tumble over this slippery shape when driving in the rain. To maximize efficiency, Mercedes powers the IAA with a plug-in hybrid that's hooked up to a gasoline engine. The result is 275 horsepower and an electronically limited top speed of 155 miles per hour. On the European testing cycle, the company figures the concept could cover 41 miles solely on electric power in aero mode. Showing the gains of the swoopy transformation, that figure falls to 38.5 miles in design mode.

As US exports top 2 million, is America becoming the world's source of cheap cars?

North American auto production is booming with 2014 figures just shy of the of the 17.3-million vehicle record set in 2000. With more models being built on the continent, even more are being shipped overseas. Factories in the US exported 2.1 million cars last year – the highest number ever. About half of those went to Canada and Mexico, but more than ever have been heading to places like the Middle East and China. The upswing comes in part from from after-effects from the Great Recession, according to The Wall Street Journal. With a weak dollar and lower production costs after the financial crisis, building vehicles in the US was relatively cheaper and more competitive in the world. At the same time buyers around the world are going crazy for crossovers. According to the WSJ, BMW and Mercedes-Benz are already exporting the majority of their US production of these models overseas. Both automakers have also announced investments to expand production further here to send more vehicles abroad. Even Honda has been shipping more models out of the country than it imported here. There is a concern this international strength could start slowing because the dollar is strengthening against other currencies, though it's too early to know what the actual effect of this could be, according to the WSJ. "Of course, we closely watch currency exchange, but we don't make changes in production or allocation based on temporary fluctuations in the exchange rate," Ford North American boss Joe Hinrichs told the newspaper. Related Video: News Source: The Wall Street Journal - sub. req.Image Credit: BMW Plants/Manufacturing BMW Ford Honda Mercedes-Benz exports us auto production

Why it's difficult to accurately test the efficiency of a plug-in car

When it comes to electric vehicles and plug-ins in general, the Environmental Protection Agency-certified range is a hugely important number. While actual range anxiety is largely psychological, the magic number does provide a point of comparison of buyers considering one EV over another. The driving distance is also often touted by automakers when marketing their models. Unfortunately, as Green Car Reports finds in a recent deep dive, the way the EPA calculates the figure is a convoluted mess, and discovering the reasons why is definitely worth the read. The issue isn't about bad science but instead comes down to vague wording. The EPA's accepted range test is sourced from an evaluation called J-1634 from the Society of Automotive Engineers, and it seems to provide balanced results for vehicles that automatically reach a single state of charge when plugged in. However for models with multiple charge settings, the situation gets complicated very quickly. Of course, these modes are often created in the software, meaning that a car's certified driving distance can change with just a few taps of the keyboard without the real world results owners might experience actually changing. By showing the test's effects on the certified range for the Tesla Model S, Nissan Leaf and Mercedes-Benz B-Class Electric Drive over the last few years, Green Car Reports makes a compelling argument that it's the evaluation that needs to change. Thankfully, it appears that the solution is a very simple one. Get the details here.