1977 Porsche 911 on 2040-cars

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Watch 1,208 Porsche 911s collect at Silverstone for world record

Porsche has been spending the majority of 2013 celebrating the 50th birthday of the 911, with its latest stunt taking the German brand to the home of British motorsports, Silverstone. To celebrate, Porsche invited enthusiasts to take their personal 911s on a lap of the former airfield, and boy, did the Porschephiles show up. 1,208 911s took part in the lap around the Grand Prix circuit, making it the largest-ever gathering of the iconic, rear-engined cars.
This wasn't just a celebration of 50 years for the 911, though. Funds raised were channeled towards Hope For Tomorrow, a cancer charity that works with the United Kingdom's National Health Service in operating mobile chemothereapy units that make life just a little bit easier on cancer patients.
Take a look at the long video below, and enjoy the passing of what are likely examples of every 911 model ever built.

2015 Porsche Macan S

I'd be willing to bet that 99 percent of all Porsche Macan owners will never take their vehicle on a track or see any more off-roading than a dirt path to a summer cottage, yet I maintain that there is no better venue to explore the absolute outer limits of the automaker's newest small family transport than on a racing circuit and an off-road course. It's testing at each extreme of the vehicle's operating envelope, with both challenges requiring very different capabilities. With that in mind, and looking forward to dirty floor mats and corded tires, I jumped at the opportunity from Porsche to wring out its new Macan S at Willow Springs International Raceway, located in Southern California's high desert.
The range-topping Macan Turbo (base price $72,300 plus $995 destination), with its 400 horsepower twin-turbocharged 3.6-liter V6 gets most of the glory these days. But many, including myself, would argue that its slightly less powerful sibling, the Macan S, is actually the pick of the new litter. Despite having 60 fewer horses under the hood and giving up six-tenths of a second in the sprint to 60 miles per hour, it costs a massive $22,400 less - money better spent on equipment that improves the crossover's ride comfort and capability, or perhaps a well-used Boxster for weekends.
Despite a reasonably attractive starting price of $49,900 (plus destination), very few Porsche buyers will leave the showroom with a base model. My Dark Blue Metallic Macan S tester was equipped with a slew of mechanical upgrades, including air suspension with Porsche Active Suspension Management (PASM), Porsche Torque Vectoring Plus (PTV Plus), Sport Chrono Package and 21-inch 911 Turbo Design wheels. A Premium Package and a few other miscellaneous options bloated its price to $69,870. That's a very steep price for the premium compact crossover segment, but it's still less than a base Macan Turbo.

Jay Leno puts carbon fiber wheels to the test on a Porsche 911 GT3 RS

Jay Leno's Garage usually focuses on looking at cars new and old, speaking to their owners and then Jay taking a drive to see what he thinks. However, Leno throws his usual shtick to the curb this week to do a full product test of the carbon fiber wheels from a company called Carbon Revolution. If you're not interested in hearing about wheels for 18 minutes, don't worry. They get mounted on a Porsche and are tested back-to-back with stock wheels, and Leno takes the 911 for a track test, too.
While carbon-fiber wheels aren't exactly a new idea, Carbon Revolution's goal is to create a lightweight, one-piece product that can be mass produced. The company even claims that it already has a deal with an OEM automaker to offer them on a vehicle in a few years. The key to the technology is that it doesn't need an expensive autoclave to be made.
In the meantime, the company's carbon fiber wheels are available as an aftermarket option for about $15,000 a set, according to the video. They weigh in at about 15.5 pounds each and offer OEM-levels of stiffness, so they could cut some unsprung mass off of a performance car. Watch here as Jay and his mechanic Bernard lap Willow Springs and give their feedback about what they think of this cutting-edge technology.