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2016 Porsche 919 Hybrid sharpens up to defend its titles

Porsche made a clean sweep of LMP1 racing last season, winning the 24 Hours of Le Mans as well as the FIA World Endurance Championship for both drivers and manufacturers. And now that it's back on top of the podium, it's not about to step down again without putting up a fight. To that end, witness the newly revised 919 Hybrid. Revealed ahead of the season's start with the Prologue event at the Paul Ricard circuit in France, the 2016 Porsche 919 Hybrid is an evolution of the version that debuted in 2014 and trounced the competition in 2015. But Audi and Toyota – with their similarly revised R18 and TS050 – will be at least as hungry this year to dethrone Porsche as Porsche will be to retain its titles, so the racing engineers in Weissach have made made a number of revisions. The chassis and basic engine architecture, of course, are the same, with a two-liter turbocharged V4 assisted by a brake energy recovery system at the front and exhaust energy recuperation at the back. But the engine now uses less fuel, so it can run longer between pit stops – a vital element of the strategy when racing for hours on end. The aerodynamics were made more adjustable so that the team can switch between three packages depending on the type of track they're running. While they were at it, those notoriously exacting German engineers managed to cut some excess weight out as well. And instead of the three different color liveries like last year, this season the 919 Hybrid will run under a common livery of black, white, and red – which hopefully won't get mixed up with those of its rivals from Audi and Toyota. We guess we'll all find out when the season kicks off in earnest at Silverstone in mid-April. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. FIA World Endurance Championship WEC, LMP1 Ready for title defence: the new Porsche 919 Hybrid Stuttgart. World debut of the new 919 Hybrid: Two days before the official Prologue for the FIA World Endurance Championship (WEC) at Paul Ricard, France, Porsche is presenting its race car for this season. Strong development characterises the new 919 Hybrid' technology. The powertrain became even more efficient, the aerodynamics were even more specific for the various race tracks and the weight of single components was even more reduced. "The over 900 hp strong Le Mans Prototype is ready for the title defence," said Fritz Enzinger, Vice President LMP1.

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.

2015 Porsche Cayenne GTS proves performance is relative

The Turbo may be the most powerful model in the Cayenne range, but the GTS is arguably the enthusiast's choice. (In so far as a 4,500-pound crossover can be considered an "enthusiast's choice," anyway.) And now, after refreshing the rest of the Cayenne lineup, Porsche has revealed the new Cayenne GTS, alongside its new 911 GTS stablemate, here at the LA Auto Show. Like the new Cayenne S, the new GTS drops the previous version's atmospheric V8 for a 3.6-liter twin-turbo V6, but ups the output to 440 horsepower and 445 pound-feet of torque to propel Zuffenhausen's portliest to 62 in a scant 5.2 seconds. Alongside the power upgrade, the GTS gets a lowered air suspension and sportier exhaust, the beefier brakes from the Cayenne Turbo and an upgraded aero kit to help with the whole barn-door-profile thing. Just don't expect all that extra kit and the prestige of a Porsche badge on your crossover to come cheap, with prices starting at $95,500 (plus $995 destination).