2007 Mercedes-benz M-class 3.5l on 2040-cars

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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.

The BMW 8 Series leads this month's list of discounts

Whether you prefer the sleek looks of a sport coupe, the wind-in-your-hair exhilaration of a convertible or the flexible practicality of a four-door sedan, BMW has an 8 Series to suit your fancy. And if you're in the market right now, you may find that your local BMW dealership is willing to take $18,124 off the sticker price. That figure comes courtesy of TrueCar, and it reflects the discount buyers are getting off the 8 Series' average $122,395 retail price. Most of the 8 Series models in American showrooms today are 2019 models, and that's the model year to which the discount above applies. This represents the largest discount on a new car in America this month, based on the dollar amount off the car's sticker price, and the third largest discount by percentage. And it means the average transaction price for a 2019 BMW 8 Series is hovering at $104,271. 2020 BMW 840i Gran Coupe View 38 Photos BMW offers two distinct versions of the 8 Series, the 335-horsepower 840i with rear- or all-wheel drive, and the 523-horsepower 850i, which comes standard with BMW's xDrive all-wheel-drive system. If you want to step even further up the performance ladder, there's the M8, but that 600-horsepower monster is getting a much smaller $6,150 discount. If you're not into BMWs, the 2019 Mercedes-AMG GT boasts the second largest monetary discount this month, with buyers averaging $16,713 off the Benz's $176,035 sticker price. Another Mercedes, the S-Class, is next with a $11,452 discount. After that comes a pair of Maserati sedans, the Quattroporte and Ghibli, each with discounts of around $11,000. Since the Ghibli's base price is so much lower than that of its larger sibling, that represents a much larger 13.5% cut from its average retail price of $81,384 for an out-the-door cost of $70,373. For a look at the best new car deals in America based on the percentage discount off their suggested asking prices, check out our monthly recap here. And when you're ready to buy, click here for the Autoblog Smart Buy program, which brings you a hassle-free buying experience with over 9,000 Certified Dealers nationwide. Related Video:

Gordon Murray, F1-driven production and .. the Pontiac Fiero

Gordon Murray's design and engineering chops are unquestionable. But does his carmaking approach owe something to the short-lived Pontiac Fiero, a scrappy little car program that emerged from GM against serious resistance? Murray had a Formula One career that ran from 1969 to 1991, with stints at Brabham ('69 to '86) and McLaren ('87-'91), that resulted in several shelves' worth of trophies for the cars he was instrumental in designing. He moved on to McLaren Cars, the consumer side of things, where, during his tenure from 1991 to 2004, he helped design the McLaren F1 and the Mercedes-Benz SLR McLaren, two cars that took learnings from his two decades in Formula One. What do all of these cars have in common? Three things: They are light. They were built in limited numbers. And they were (and are) exceedingly expensive—when the McLaren F1 debuted in 1994, it stickered at $815,000. Murray went on to establish Gordon Murray Design in 2007. GMD has created some interesting concept vehicles, such as the diminutive T.25 city car (94.5 inches long, 51.1 inches wide and 55.1 inches high), and the OX, a lightweight truck for the developing world that packs like an IKEA shelf and is working toward realization through a worthy crowdfunding campaign established by the Global Vehicle Trust. Now he has created a vehicle manufacturing company, Gordon Murray Automotive, that will use manufacturing methods that he developed under the moniker "iStream." Unlike a unibody, there are the "iFrame," a cage-like construction made with metallic components, and the "iPanels," which are composite. The panels aren't simply a decorative skin; they actually provide structure to the vehicle. Presumably this has something of the F1 monocoque about it. Going back to the three elements, (1) this arrangement results in a vehicle that can be comparatively light; (2) Murray has indicated that his manufacturing company will be doing limited-run production; and (3) to launch Gordon Murray Automotive they are going to be building a flagship model, about which Murray said, "With our first new car, we will demonstrate a return to the design and engineering principles that have made the McLaren F1 such an icon." Which seems to imply that it will be on the pricey side. According to the company's verbiage, "iStream forges an entirely new production method that defies conventionality with its Formula One-derived construction and materials technologies." It also sounds a whole lot like ...