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Top Gear brings together LaFerrari, McLaren P1 and Porsche 918

Earlier this month, Top Gear released a brief video of the comparison test between three hybrid hypercars we'd all been waiting for: the Ferrari LaFerrari, McLaren P1 and Porsche 918 Spyder. The story was done by the print magazine and not by the television show, and the video they released was barely over half a minute long, reserving the full version for subscribers of the iPad edition. Now the British mag has put the full video on YouTube, and while it's still only a minute and a half long – three times the length of the previous teaser – it's packed with electrified exotic goodness. The test surely took some serious wrangling to put together, and though the metal (or carbon fiber, as the case may be) was apparently furnished mostly by private owners, to hear Top Gear tell it, the manufacturers – Ferrari, McLaren and Porsche – were eager and helpful in putting the showdown together. For the final conclusions, we're afraid you'll still have to buy the magazine, but for a rare chance to watch all these three world-beaters on the same road at the same time, you'll want to scope out this latest video clip. Related Video: News Source: Top Gear via YouTube Ferrari McLaren Porsche Hybrid Supercars Videos porsche 918 spyder mclaren p1 ferrari laferrari

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.

Ferrari Speciale and Porsche GT3 make the trip to Le Mans

Call it a pilgrimage. Call it a right of passage. The bottom line is that every racing fan should make the trip to Le Mans at some point. All the better if you can do it in style, as Evo has for this latest video. Instead of taking any old car through the Chunnel and along the French countryside to the famous Circuit de la Sarthe, Evo made the trip in the Ferrari 458 Speciale and Porsche 911 GT3. Both are more extreme versions of the already capable sports cars. They're still naturally aspirated, drive the rear wheels through seven-speed dual-clutch transmissions, and both won top honors in Evo's car of the year awards upon their release. And we could hardly imagine better vehicles for the journey. Along the way, the convoy-of-two stopped by the side of the old Rouen-Les-Essarts circuit. Back in the 1950s and 60s it was regarded as one of Europe's finest street circuits, hosting the French Grand Prix five times. It was closed down and paved over in the decades that followed, and is today part of a public thoroughfare – but you can still drive around it and see some of the relics of its former self peering through. Related Video: News Source: Evo via YouTube Ferrari Porsche Supercars Videos viral video porsche 911 gt3 evo circuit de la sarthe