1970 Porsche 914 4 1.7l 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.

Porsche 918 Spyder with Weissach package does 0-62 mph in 2.6 seconds

Porsche marketers are having a field day with the 918 Spyder after some last-minute tuning improved the car's performance. They now say that it's so fast it's already beaten itself. Let us explain: Using a Weissach package-equipped 918 as an example (which reduces the plug-in hybrid supercar's weight through the deletion of some interior items, more generous use of carbon fiber and magnesium wheels), the car's previous official 0-62 miles-per-hour time of 2.8 seconds has been cut to 2.6. Additionally, 0-124 mph takes 7.2 seconds and 0-186 mph is dispatched in 19.9 seconds, times that were reduced by half a second and 2.1 seconds, respectively.
In all-electric mode, a non-Weissach pack 918 does 0-62 mph in 6.2 seconds (with the package, 6.1 seconds), down from 6.9 seconds. Efficiency is also improved thanks to the final tuning. The New European Driving Cycle (NEDC) rating of a Weissach pack-equipped car equates to 94 miles per gallon, up three mpg compared to before. That's pretty good for a car with 887 horsepower!
Check out the press release below for more details on how Porsche's final tuning measures improved its flagship supercar.

Porsche 991 vs. 930 Flatnose in 911 Turbo convertible faceoff

The Porsche 911 Turbo has a legacy of being a tough car to drive. With a ton of power set right over the rear wheels, its reputation is to lose control as soon as the driver stops concentrating. However, this isn't quite so true anymore. The modern ones are tamed through technology with things like hydraulically controlled engine mounts, not to mention all-wheel drive. In its latest video, Autocar tries to decide whether 25 years of progress really makes the turbo a better vehicle.
It's summer, so what better version to compare than the 911 Turbo Cabriolet? In one corner, Autocar has the latest and greatest 2014 version pumping out 513 horsepower and 486 pound-feet of torque with a seven-speed dual-clutch gearbox. Its challenger is a 1989 911 flatnose convertible sporting 326 hp and 347 lb-ft of torque. It's a truly rare car in the UK with only eight of them remaining on the roads in that region.
Granted, this test isn't so much a battle as it is a comparison. There's no question that the modern 911 would beat the classic in practically every objective category. What the video aims to find out is whether the flatnose is better in subjective measurements like its "feel." Scroll down to watch these two droptop Porsches square off.