You won’t be able to buy a 2019 Porsche Cayenne until halfway through 2018, but Porsche is spilling the beans on two of the V6-powered versions of its popular SUV now (no word yet on Turbo or Hybrid models). Maybe the increasing competition in the class is forcing Porsche to divulge info early on in order to grab and hold customers' attention now before they’re tempted to stray to the many offerings of other brands. Who knows?

Here are seven key things to know about the newest Cayenne:

1. There will be only two Cayenne models available at launch: a single-turbo 340-hp V6 Cayenne and a 440-hp twin-turbo V6 Cayenne S. The single-turbo model gets to 60 mph in 5.6 seconds if you get the Sport Chrono package, 5.9 seconds without. The twin-turbo does it in 4.6/4.9 seconds. That’s not bad.

2. Don't expect any versions of the new Cayenne to reach U.S. dealerships until “midway through 2018.”

3. V6 Cayennes get a new eight-speed Tiptronic transmission that shifts quicker and offers more comfort. It’ll have five modes: on-road, mud, gravel, sand and rocks.

4. There will be a lot of aluminum in its structure. Porsche says the new chassis is 143 pounds lighter thanks to increased efficiencies, as well as the use of alloys and high-strength steel.

5. Four-wheel steering is available. At low speeds, the Cayenne's rear wheels turn opposite the fronts for better parking maneuverability; at high speeds, they turn in sync with the fronts for better stability.

6. In addition to plain old disc brakes and performance-oriented carbon-ceramic brakes, Porsche has added a third option: Porsche Surface-Coated Brakes with a tungsten-carbide layer. The latter has a cast-iron disc coated with tungsten-carbide for better friction while reducing wear and brake dust.

7. Pricing will start at $66,750 for the Cayenne and $83,950 for the Cayenne S; prices can rise rapidly from there depending on which options you choose.

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