1991 Porsche 911 Convertible 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."

'Faster. Farther.' dives into the history of Porsche racing tech

No doubt, Porsche has produced some of the best endurance racecars around, such as the turbocharged, slant-nose 935 of the 1970s and the ground-effects-enhanced 956 and 962 of the 1980s. But the company's most famous racecar, its first overall winner at the 24 Hours of Le Mans, was the 917.
The 917 embodied many of Porsche's technological achievements up to that point, such as the company's first 12- and 16-cylinder engines (the flat-16 was never used in competition), fiberglass bodies that implemented early aerodynamic practices and the use of new, exotic materials, such as magnesium and titanium.
The racecar was commissioned by the head of Porsche Motorsports, Ferdinand Piëch, to win overall at the 24 Hours of Le Mans in 1970, after he realized a loophole in the rules that allowed cars to compete with engines up to five liters in the Sport category if they were also production models. Piëch saw opportunity: the top prototype class was restricted to three liters; the production minimum to compete in Sport was 25 cars. And so, with much effort, Porsche assembled 25 "production" 4.5-liter 917s and had them parked in a neat line for the race inspectors to verify their legitimacy. It didn't take long before people realized the new Porsches were much faster than the prototype racers, with a top speed approaching 250 miles per hour.

2015 Porsche Cayenne S E-Hybrid

Think of the electric motor in the facelifted 2015 Porsche Cayenne S E-Hybrid as the cream filling in an Oreo cookie. Under the hood of this plug-in hybrid crossover is a 333-horsepower, supercharged 3.0-liter V6 with a 95-hp synchronous electric motor sandwiched between it and an eight-speed Tiptronic automatic transmission. The clutched powertrain allows pure combustion, pure electric or a combination of both to drive all four wheels through Porsche's permanent all-wheel-drive system.
Differentiating itself from the Panamera S E-Hybrid sedan, which shares the same basic powertrain and stores energy in a 9.4-kWh battery, the Cayenne crossover is fit with a more robust 10.8-kWh lithium-ion battery that delivers an estimated pure-electric driving range of up to 22 miles at speeds of up to 78 miles per hour.
To be one of the very first US media members to sample Porsche's latest fuel-efficient crossover, the automaker flew us to Frankfurt, Germany, to test the five-passenger Cayenne S E-Hybrid on its home turf.