2012 Porsche Cayenne S Hybrid on 2040-cars

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'Faster. Farther.' dives into the history of Porsche racing tech

No doubt, Porsche has produced some of the best endurance racecars around, such as the turbocharged, slant-nose 935 of the 1970s and the ground-effects-enhanced 956 and 962 of the 1980s. But the company's most famous racecar, its first overall winner at the 24 Hours of Le Mans, was the 917.
The 917 embodied many of Porsche's technological achievements up to that point, such as the company's first 12- and 16-cylinder engines (the flat-16 was never used in competition), fiberglass bodies that implemented early aerodynamic practices and the use of new, exotic materials, such as magnesium and titanium.
The racecar was commissioned by the head of Porsche Motorsports, Ferdinand Piëch, to win overall at the 24 Hours of Le Mans in 1970, after he realized a loophole in the rules that allowed cars to compete with engines up to five liters in the Sport category if they were also production models. Piëch saw opportunity: the top prototype class was restricted to three liters; the production minimum to compete in Sport was 25 cars. And so, with much effort, Porsche assembled 25 "production" 4.5-liter 917s and had them parked in a neat line for the race inspectors to verify their legitimacy. It didn't take long before people realized the new Porsches were much faster than the prototype racers, with a top speed approaching 250 miles per hour.

Watch a Cayenne Turbo S, Range Rover SVR, and Cherokee SRT drag race

We live in a weird world where high-performance SUVs could win a 60-mile-per-hour sprint against sports cars from just a few years ago. Here, Top Gear sets up a three-way drag race against the Porsche Cayenne Turbo S, Land Rover Range Rover Sport SVR, and Jeep Grand Cherokee SRT, and the results show just how quickly these high-riding models can cross the quarter mile. The Cherokee SRT is the patriotic choice among the three, but it's down on power in this fight. Meanwhile, the Range Rover's menacing growl sounds the best, and the Cayenne Turbo S has the most horsepower. You'll have to watch the video to see which SUV will win this battle. Related Video:

Porsche celebrates 50 years of 911 with some excellent pics

The Porsche 911 is one of the most iconic sports cars of all time, and to celebrate the car's first 50 years, Porsche has released a stunning set of photos showing how far the 911 has come from the original back in 1963 to its current 991 generation. Unlike the recent 60-year photo spread that Chevrolet put together for the Corvette, though, Porsche's gallery only shows the original 911 and the current car.
Each time the 911 is redesigned, the car's front fenders, roofline and the shape of the side windows are key focal points. Even some of the interior cues have remained the same over the years, including the positioning of the ignition key on the left of the steering column and the five-gauge instrument cluster layout.
Scroll down for Porsche's press release breaking down the seven generations of the 911, and be sure to check out our gallery with plenty of high-res pics for you to download as a desktop wallpaper. In fact, we're providing these at 1920-pixels-wide instead of our usual 1280 wide. Enjoy!