2017 Porsche Panamera U.S. release date: Hatchback with new V8 engine will have full airing this fall

The 2017 Porsche Panamera will be very different from the original (pictured).Porsche

The 2017 Porsche Panamera will be the first car to show the full power of the all-new V8 engine recently introduced by the brand at the 37th International Vienna Motor Symposium.

Porsche did not provide complete information about the new twin-turbocharged engine but it has revealed enough to get fans even more excited about the 2017 Porsche Panamera.

The V8 engine should allow the second-gen Panamera to deliver 550 horsepower (hp) at 5,750 rpm and base 568 pound-feet (lb-ft) of torque, which is incredible in comparison to its predecessor's 520 hp and 516 lb-ft (base).

The new and improved V8 engine to be seen in action in the 2017 Porsche Panamera also boasts an impressive range at 1,960 to 4,500 rpm (basic) and 6,800 rpm at its max.

The all-new engine is expected to have many in awe, primarily for its start/stop system that dramatically boosts its performance and efficiency.

In numbers, customers are looking at 30 percent more efficiency compared to the twin-turbocharged engine on the current-gen Porsche Panamera and Cayenne.

Also expected to be housed in the new Cayenne sometime after, the V8 engine also comes with a cylinder de-activation system, which puts four cylinders to sleep when they are not needed.

With the equipment at the heart of the 2017 Porsche Panamera, the upcoming car should perform better than its predecessor, which generated the lowest sales for the company last year.

Users will see the 2017 Porsche Panamera and the new V8 in all their glory this fall, when Porsche officially lifts the covers off the wagon at the Paris Auto Show to show off its new design.

Its look isn't a big of a secret though, since several people from Porsche have been test-driving the car uncovered in Colorado. The folks over at The Fast Lane caught glimpses of the sedan.

And so far, it appears that its improved, sexier look (at least compared to the first Porsche Panamera) will be as much of a selling point as the V8 engine and the major upgrades it boasts.

Shortly after the design reveal, customers in Europe should be able to purchase the hatchback, while those in the U.S. will have to wait until 2018, as revealed by Porsche Cars North America CEO Klaus Zellmer to Automotive News.