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'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 Panamera S E-Hybrid

When the Porsche Panamera joined the hybrid poker game with the S Hybrid, it started with a seat at the penny-ante table: engineers inserted a 47-horsepower electric motor between the gas engine and eight-speed automatic, powered by a 1.7-kWh nickel-metal hydride battery. It was tiny stakes, the kind of non-risk taken when you're trying to figure out both how to play the game and how you want to play the game. After two years of experimenting, the 2015 Panamera S E-Hybrid makes a bigger bet – the kind that requires paper bills and the maxim, "If you can't fold it, hold it." Porsche's plug-in hybrid gets every adjective we expect of a successor from Stuttgart: more complex, more efficient, more powerful and faster. Driving Notes The electric motor leaps from 47 hp to 95 hp thanks to more windings on the stator coils and new power electronics. The battery goes from a 1.7-kWh nickel-metal hydride unit to 9.4-kWh lithium-ion setup; it's the same physical size as before, still mounted under the cargo deck. Internal combustion still comes from the Audi-sourced, 333-hp, supercharged V6, but total system power goes from 380 hp and 428 pound-feet of torque in the S Hybrid to 416 hp and 435 lb-ft in the S E-Hybrid. The previous system could run a mile on electricity, this one is estimated to last more than 20 miles on e-power on the European cycle. The 0-60 dash takes 5.2 seconds, down from 5.7 seconds; top speed in electric-only mode is 84 mph – up from 50 mph. It takes 2.5 hours at a 240-volt outlet to fully recharge the battery; the Porsche Universal Charger comes equipped with a cable for that and a standard 120-volt socket. Only Panamera obsessives will notice the sheetmetal changes for 2015, but there are sharper lines on the front and rear fascias, faint revisions made to the light clusters, wider glass – over the same-sized opening – on the rear tailgate, and a wider rear spoiler. Outsiders will know the S E-Hybrid because of Acid Green highlights on the fender and tailgate logos, as well as the Acid Green brake calipers. Inside, the central tach remains, but the analog speedometer was evicted to make space for the battery power meter, and Acid Green needles dance across all the gauges. The navigation screen shows your electric driving range and the Porsche Car Connect service provides the expected, smartphone-controlled e-mobility features.

Porsche offering new tire option for Carrera GT

Let's face it: finding new tires for older cars can be challenging if tire manufacturers have stopped carrying the right sizes (this writer went through Hell to find a set of 205/60-13s). But what about tires for low-volume supercars, which use sizes that often won't fit on high-volume production vehicles? The Porsche Carrera GT isn't that old and tires are still available in the correct sizes, but the German automaker has shown its support of keeping them on the road by working with Michelin to give owners yet another tire option. Enter the Carrera GT-specific Pilot Super Sport.
It's common knowledge that tires are one of the most important pieces of the performance puzzle, and Porsche claims that the PSS tires, sized 265/35ZR-19 front and 335/30ZR-20 with Porsche's "N0" rating, will improve the Carrera GT's handling and stability all the way up to its claimed top speed of 205 miles per hour. That's important for a car with razor-sharp handling characteristics. They'll also net drivers a 10-percent increase in fuel economy on regular roads and up to 20 percent on racetracks, Porsche says.
The PSSs use cutting-edge tire technology to harness the Carrera GT's 610-horsepower. They have a dual-compound tread that's different from the inside of the tire to the outside, which, Porsche says, helps steering precision and increases maximum grip. Aramid fibers, which are lightweight but just as strong as steel, are used in the tire's belt to reduce unsprung weight.