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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.

2014 Porsche Panamera Diesel is something to torque about

Porsche has been in the business of slaying sacred cows for the better part of a decade, from venturing into the SUV space with the Cayenne to the four-door realm with its Panamera hatchback. And if those vehicles didn't leave brand purists apoplectic enough, Porsche has been adding diesel and hybrid power to its portfolio, thought to this point, neither alt-fuel motivator has made its way into the brand's sports car lineup.
Today's Frankfurt Motor Show effectively marks the second-generation of diesel power in the Panamera, and this updated 3.0-liter V6 features 300 horsepower (50 ponies more than last year) and a whopping 479 pound-feet of torque, available from 2,500 rpm. That power is achieved with a new higher-pressure, water-cooled turbo and redesigned engine internals that include a new crankshaft and pistons. The newfound increase is said to raise top speed to 161 miles per hour from 152, and drop the car's 0-62 mph time from 6.8 seconds down to 6.0. It also figures to be a better handler, with a new torque-vectoring rear differential borrowed from its gas-powered brethren and a reworked transmission for crisper shifts. The suspension has also been retuned, along with the updated 2014 visuals first revealed at April's Shanghai Motor Show.
No word yet on the North American sales prospects of this diesel Panamera, but we imagine that depends in part on how well the Cayenne diesel is selling.

Is the skill of rev matching being lost to computers?

If the ability to drive a vehicle equipped with a manual gearbox is becoming a lost art, then the skill of being able to match revs on downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. The usefulness of rev matching in street driving is limited most of the time – aside from sounding cool and impressing your friends. But out on a race track or the occasional fast, windy road, its benefits are abundantly clear. While in motion, the engine speed and wheel speed of a vehicle with a manual transmission are kept in sync when the clutch is engaged (i.e. when the clutch pedal is not being pressed down). However, when changing gear, that mechanical link is severed briefly, and the synchronization between the motor and wheels is broken. When upshifting during acceleration, this isn't much of an issue, as there's typically not a huge disparity between engine speed and wheel speed as a car accelerates. Rev-matching downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. But when slowing down and downshifting – as you might do when approaching a corner at a high rate of speed – that gap of time caused by the disengagement of the clutch from the engine causes the revs to drop. Without bringing up the revs somehow to help the engine speed match the wheel speed in the gear you're about to use, you'll typically get a sudden jolt when re-engaging the clutch as physics brings everything back into sync. That jolt can be a big problem when you're moving along swiftly, causing instability or even a loss of traction, particularly in rear-wheel-drive cars. So the point of rev matching is to blip the throttle simultaneously as you downshift gears in order to bring the engine speed to a closer match with the wheel speed before you re-engage the clutch in that lower gear, in turn providing a much smoother downshift. When braking is thrown in, you get heel-toe downshifting, which involves some dexterity to use all three pedals at the same time with just two feet – clutch in, slow the car while revving, clutch out. However, even if you're aware of heel-toe technique and the basic elements of how to perform a rev match, perfecting it to the point of making it useful can be difficult.