1990 964 Grand Prix White Marine Blue Supple Leather 5spd 38k Original Miles on 2040-cars

Auto blog

Porsche 919 Hybrid revives Porsche's factory Le Mans efforts

After months of teasing with camouflaged testers, Porsche has finally unveiled its prototype entry for the 2014 World Endurance Championship, the 919 Hybrid. Porsche, you may recall, hasn't had campaigned a factory team at Le Mans in years, so the 919 is nothing less than their recommitment to endurance racing.
Combining a 2.0-liter V4 (yes, a V4) that revs to 9,000 rpm, the 919 produces around 500 horsepower with a pair of energy recovery systems. The first system recovers the heat energy from exhaust gasses as they pass through an electrical generator, while the second system is a bit more familiar. Using a setup similar to what is found on the production 918 Spyder, a generator on the front axle recovers kinetic energy from the brakes, which is subsequently stored in a battery system. That power can then be sent to the front wheels at the driver's command, effectively turning the 919 into an all-wheel-drive racecar.
Despite these various forms of motivation, Porsche doesn't claim to be seeking outright power supremacy, with Chairman Matthias Müller saying, "In 2014, it will not be the fastest car that wins the World Endurance Championship series and the 24 hours of Le Mans, rather it will be the car that goes the furthest with a defined amount of energy. And it is precisely this challenge that carmakers must overcome. The 919 Hybrid is our fastest mobile research laboratory and the most complex race car that Porsche has ever built."

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.

2017 Porsche Panamera revealed: It's finally pretty

Things are looking up for the Porsche Panamera. Dynamically, it's always been good – fast, comfortable, and much more spacious than something like a 911 – but the general consensus is that the first-gen Panamera's styling was, shall we say, less successful. All that changes for the second-generation car. Despite being longer, wider, and taller than before, it's much more attractive, with a lower roofline that sweeps back toward the rear haunches with a pleasing arc. There's a clear styling link to Porsche's mainstay, the 911. The new Panamera's body is made mostly from aluminum, minus some high-strength steel and the optional large, panoramic roof overhead. LED lighting elements front and rear look suitably up-to-date, especially the interconnected design of the taillights. Wheels range from 19 inches to 21, with 20s standard on the Turbo. Porsche isn't just recalling its current sports car with the new Panamera. The central tachometer is designed to evoke the one in the 1955 356 A, more colloquially known as the Speedster. Beside that one analog throwback, however, the latest Panamera is fully modern and technologically advanced. Two seven-inch screens flank the tach, and the Porsche Advanced Cockpit includes a 12.3-inch tablet-like touchscreen in front of the driver. Apple CarPlay is available, but there's no mention of Android Auto. A new thermal imaging camera makes it easier to see in the dark. A completely new range of engines powers the second-gen Panamera, starting with a twin-turbo 2.9-liter V6 that puts out 440 horsepower and 405 pound-feet of torque. In the Panamera 4S, that's enough to launch the saloon to 60 in 4.4 seconds (4.2 with the optional Sport Chrono Package) and to hit a top speed of 180 miles per hour. The Panamera Turbo boasts a 4.0-liter, twin-turbo V8 with 550 hp and 567 lb-ft. The 0–60 run takes just 3.6 seconds (3.4 with Sport Chrono) and the top speed is 190 mph. Both the 4S and the Turbo come with standard all-wheel drive and an eight-speed PDK dual-clutch automatic transmission. Much of the chassis tech from the last Panamera is carried over, including Porsche Active Suspension Management, Porsche Torque Vectoring Plus, and active roll stabilization. The available active air suspension has been updated with a three-chamber design. The 2017 model adds rear-wheel steering as an option, borrowed from the 911 line.