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Porsche updates 919 Hybrid racer for 2015 season

Porsche's grand return to the elite level of global endurance racing showed mixed success in its first year. The company did score one victory in the 2014 FIA World Endurance Championship season during the race in Brazil but finished in third place overall among the three factory manufacturers. Porsche is hoping for a few more wins in 2015 and is releasing its first shots of the updated car to achieve those triumphs when things kick off in April. The team's racer is still called the 919 Hybrid, but Porsche promises this second-generation version is a "comprehensive evolution" compared to last year. The most obvious change is the redesigned front end where the styling now features a simple horizontal intake running across the front (compare to 2014, below). The nose area also now flares out to the windshield. The side grows a more complicated look, though, with a series of fins just behind the driver compartment. Porsche isn't divulging many details about anything different under the skin. The 2015 919 is still propelled by a 2.0-liter turbocharged V4, and an electric motor powers the front wheels. There are also two energy recovery systems. In addition to the previous challengers from Audi and Toyota, Porsche has one more competitor in the factory ranks this season. The Nissan GT-R LM Nismo is rumored to be a radical departure from the rest of the field with an engine possibly located in front of the driver. Read the German brand's very brief release about the updated 919 Hybrid below and click through the gallery to see how it looks. Track debut for 2015 Porsche 919 Hybrid Stuttgart. Extensive testing with the second generation of Porsche's Le Mans prototype will begin on January 18, on Abu Dhabi's Yas Marina Circuit. As scheduled, this marks the start of the 2015 motorsport season for the Porsche Team. The new Porsche 919 Hybrid has already had its roll-out on the Weissach test track. As a next step, there will be several performance and endurance tests before the WEC season opener on April 12 in Silverstone, Great Britain. The new Porsche 919 Hybrid is a comprehensive evolution of the successful car that made its debut in 2014. It will feature the same innovative drivetrain concept consisting of a 2-litre V4 turbocharged petrol engine, an electric motor powering the front wheels, and two energy recovery systems. The new generation car had its first roll-out on December 15, 2014.

Lamborghini could be sold or spun off from the Volkswagen Group

Volkswagen is reportedly considering a sale or stock listing for its high-end Lamborghini brand. The German automaker is looking to fold the Italian supercar brand into a separate legal entity, reports Bloomberg, which cites "people familiar with the matter" who don't want to be identified "because the deliberations are confidential and no decisions have been made." Any of this sound familiar? The goal of spinning off Lamborghini would be to stockpile more cash and other resources for VW's massive planned push into electric vehicles. Back in March, reports circulated that Volkswagen's "Vision 2030" corporate plan might include plans to focus on the brand's core brands — VW, Audi and Porsche. That means the futures of fringe players like Lamborghini, Bentley, Bugatti, motorcycle brand Ducati and design firm Italdesign (and note this isn't a comprehensive list of brand's under the expansive VW Group umbrella) are up in the air. VW, according to the report, is targeting a market value of $220 billion, which is a big jump from the brand's current $89 billion valuation. Bloomberg pegged Lamborghini's valuation at around $11 billion back in August, buoyed by sales and profits generated by the introduction of the Urus sport utility vehicle. On the flip side, Lamborghini is currently grappling with how best to update its supercar lineup in the face of ever-increasing emissions regulations.

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.