1975 Porsche 911 S on 2040-cars

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Porsche 911 Aerodynamic prototype cheated the wind ahead of its time

You might think that sports cars would have the lowest drag coefficient of all cars. And yes, they do tend to be more slippery than, say, SUVs or convertibles, but the sleekest vehicles on the road tend to be EVs, hybrids and luxury sedans. Sports cars, on the other hand, have aerodynamically detrimental needs for downforce and additional engine cooling. Still, the Porsche 911 is better than most, and has only gotten more so over the years. Its relatively narrow track and compact form mean it has a smaller frontal area than some other sports cars, and the gradual sweeping back of its headlights and windshield have only augmented its capacity for cheating the wind.
This 911 prototype, however, is even more aerodynamic than most. It's based on a "G model" 911 from 1984, but employed such features as covered wheels, a new rear spoiler and a reprofiled front end to drop its drag coefficient from 0.40 to 0.27, making it as slippery as a modern sedan and better at cheating the wind than just about anything built up to that point, save for maybe the Tatra 77, Citroën SM or Tucker Torpedo.
Elements of this prototype ended up gradually making it into production Porsches for years to come, and you can clearly see early influences on the second-generation 964 and even on the 959. It's featured here as the latest installment in a video series on rare historic Porsches unearthed from the company archives, following previous clips that featured a rare V8-powered 911 and a mid-engined 911 prototype. Scope out the latest episode in the video below.

Investigators blame speed in fatal Paul Walker crash

When the tragic news first came in that actor Paul Walker had been killed in a car crash, family, friends and fans were left searching for answers. They now have at least one key question answered, with the Los Angeles County Sheriff's Department blaming "unsafe speed" for the fatal accident.
According to a statement released by the LACSD, "Investigators determined the cause of the fatal solo-vehicle collision was unsafe speed for the roadway conditions". The investigation into the November, 2013 crash determined that Walker's 2005 Porsche Carrera GT had been driven by his business partner and racer, Roger Rodas, at speeds between 80 and 93 miles per hour - less than the 100+ mph initially suspected, but still far too fast for the road on which they were traveling, which carried a posted limit of 45 mph.
In the investigation into the death of the Fast & Furious star and his friend, some people were quick to finger the Porsche in which they were riding as the culprit. The Carrera GT does, after all, have the reputation of being a notoriously difficult car to control. But after an exhaustive investigation, law enforcement officials in California have vindicated the car and dismissed any mechanical fault as the cause of the accident.

Porsche reveals first Macan driving and manufacturing footage

One of the more anticipated offerings of the upcoming year, Porsche's sporty baby Cayenne, the 2015 Macan, has already earned nods of approval from a number of Autoblog staffers. We named it one of the top five debuts at last month's LA Auto Show, citing its 400-horsepower turbocharged engine and other sporty bits as good reasons to get excited about Stuttgart's latest.
And while our first test may be many months away, we're keeping our ears to the ground for any information on Porsche's compact crossover. We're especially keen on stuff like this - our first look at the new model in motion and undergoing assembly at its Leipzig plant. Both are shorter videos, and while there's little of the glorious engine noise we've already been teased with, the videos do offer a great look at the handsome Macan on the road, as well as glimpse at Porsche's state-of-the-art manufacturing operations.
Scope out the videos below and let us know what you think.