1996 Porsche 911 Carrera Cabriolet on 2040-cars

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New info on how VW, Porsche, Audi V6 TDI engine cheat works

The German newspaper Bild am Sonntag is reporting that US investigators have found three pieces of software that work in concert to turn off the emissions control equipment in certain diesel models after a set period of time. The engine in question, the 3.0-liter TDI turbodiesel, was found in certain Volkswagen Touareg, Audi Q7, and Porsche Cayenne models – the sale of which was suspended in the US late last year. Since most emissions compliance testing takes around 20 minutes, the software in the three VW Group models shuts off the emissions control equipment after 22 minutes, a straightforward end run around the testing. Remember that the 3.0-liter TDI engines aren't included in the big buyback and recall program announced for the smaller 2.0-liter, four-cylinder TDI engines. The 3.0-liter engines will likely get their own program, but we don't know when to expect it or exactly what it will look like. Last month, California rejected a proposed fix for the larger TDI engines, and VW went back to the drawing board. Since the company is unlikely to create two fixes, one for California and one for the rest of the nation, the company can't really proceed until they figure out a solution California will accept. The EPA hasn't officially commented on the report, and we don't know how Bild am Sonntag came across the information, but we'll be closely watching what emerges after this report. Related Video:

Porsche reveals new Panamera Turbo S ahead of Tokyo debut

For many buyers in the market for a luxury sports sedan, style is as important as performance. But while the Porsche Panamera undoubtedly delivers in the latter category, it falls somewhat short in the former. Porsche went to some lengths (if not quite far enough for some tastes) to improve its four-door model's visual appeal with the facelift revealed earlier this year, but now it's time to up the performance game with the new Panamera Turbo S.
Set to be revealed at the Tokyo Motor Show in just a few weeks from now, the new top-tier Panamera benefits from several key upgrades over the existing Turbo and the pre-facelift Turbo S. For one, its 4.8-liter twin-turbo V8 now produces 570 horsepower (up from 520 in the new Turbo and 550 in the old Turbo S and the latest Cayenne Turbo S) and 553 pound-feet of torque (up from the current Turbo's 516 but the same as the previous model). Despite the power boost, however, Porsche is quoting the same 3.6-second 0-60 time for the new Panamera Turbo S as it did for the previous one - but then that hardly required improvement in the first place. Top speed, however, is up to 192 miles per Autobahn-blurring hour, two mph faster than the previous model.
Other features include carbon-ceramic brakes (hopefully with more durable bolts than sister companies Lamborghini and Bentley have been using) packed inside the wheels from the 911 Turbo and an exclusive shade of greige called Palladium. And for the first time, customers will be able to order this top-spec model in long-wheelbase Executive trim. But don't expect it to come cheap: MSRP (before delivery and options) is quoted at $180,300 for the standard wheelbase and $200,500 for the stretched model. That's two and a half times the price of a base Panamera, and makes the new Panamera Turbo S Executive both the most expensive and most powerful Porsche your can buy this side of a 918 Spyder. Haven't passed out yet? There's more to digest in the press release, so head on down below to take it all in.

Mercedes S63 AMG Coupe vs Porsche Panamera Turbo S in unusual lux showdown

We'll admit it, we're really looking forward to more time with the Mercedes-Benz S-Class Coupe. Compared to other high-dollar luxury coupes - we're looking at you Bentley Continental GT - it's more stylish, easily more affordable, and since it's a Mercedes, lacks the sense of fragility that comes with a more exotic name plate.
Auto Express has taken a whack at reviewing the new two-door S-Class, and for some reason, the British mag is comparing it with a Porsche Panamera. Now, while comparing the looks of an S-Class Coupe and a Panamera is a bit like holding a beauty contest between Kate Upton and Medusa, this isn't as bizarre a pair as you might think, particularly when you opt for the high-dollar S63 AMG Coupe and the Panamera Turbo S.
The two offer similar power outputs from their force-induced V8s - 577 horsepower in the Benz and 570 horsepower in the Porsche - and are even similar in terms of interior and exterior dimensions. The S-Class actually has an extra inch between the axles and is 1.2 inches longer overall (it's also about 300 pounds heavier). In the cabin, the S-Class also has a tiny bit more rear legroom, with 33.4 inches to the Panamera's 33.3.