1993 Porsche 911 on 2040-cars

Auto blog

Porsche 911 GT3 RS getting all-new atmospheric engine

Porsche surprised many of its most puritanical enthusiasts when it took a decidedly more usable approach with the current 911 GT3. But when the new GT3 RS debuts, it promises to be a much more extreme departure. And a big part of that comes down to the engine. At the Detroit Auto Show this week, Auto Express spoke with Porsche R&D chief Wolfgang Hatz – who also happens to be head of engine and transmission development for the entire Volkswagen group. Hatz revealed that Porsche has developed a completely new engine for the GT3 RS, and while previous rumors suggested the RS would go turbo to fill in for the lack of a GT2 (and make the most out of its displacement), Hatz confirmed that it will be naturally aspirated. Considering that Porsche rarely goes downwards when it comes to 911 engine displacement, only upwards, we'd expect the new RS to pick up where the previous 4.0 left off. The new GT3 RS is also expected to pack a more extreme suspension, aero and stripped-out interior, but those hoping for an old-school approach may be disappointed to learn that the new RS will (at least at launch) only be available with the seven-speed dual-clutch transmission – though a manual version could follow if there's enough demand. In a related development, Hatz also hinted that the Cayman GT4 could debut at the Geneva Motor Show in March, with an even more extreme approach than the previous Cayman R. The new top-of-the-line Cayman is reportedly being developed to comply with GT4 class racing regulations but be fully homologated for road use. Related Video:

Toyota reveals cause of heartbreaking failure at Le Mans

Toyota was set to become only the second Japanese automaker to win the grueling 24 Hours of Le Mans endurance race. But on the last lap, the No. 5 TS 050 car, which was being driven by Kazuki Nakajima, suffered a technical issue that resulted in a sudden loss of power. In a team statement, Toyota Gazoo Racing has revealed that the culprit was a "defect on a connector on the air line between the turbocharger and the intercooler." The defective air line connector, according to the statement, resulted in a loss of control over the turbocharger. The team isn't sure why the connector failed and is continuing to analyze the component to get down to the root cause, the team said in the statement. During the race, the team was able to get the No. 5 car running again by modifying the control settings. The fix, however, came a little too late as the vehicle could not complete the lap under Le Mans' maximum final lap time of six minutes and limped its way to 45th place. While the team is working hard to find the fix – to avoid a similar type of failure in the future – it claims there is no relation to the engine issues that were experienced by the two TS 050 cars at Spa during the World Endurance Championship in May. You can read Toyota Gazoo Racing's full statement here. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Image Credit: JEAN-SEBASTIEN EVRARD via Getty Images Motorsports Porsche Toyota Racing Vehicles le mans 24 hours

The 2014 Rolex 24 at Daytona: What we learned, what we saw

Two days after the flag dropped on the 2014 Rolex 24 at Daytona, people are still trying to figure out what it might portend for the rest of the season. In 24 hours, two minutes and 24 seconds, 695 laps were completed by the car that crossed the line first. During that time, 67 cars began the race, 18 of them retired. There was that accident, and a red flag. There were supposedly slower classes beating supposedly faster classes. There were 16 caution periods, including that yellow flag. And then there was The Decision. And Then The Uproar. And then The Reversal.
There was also some pretty good racing, so let's have one last look at the weekend. Oh, and there was that 1964 Ferrari 250 GTO Series II...
If you want to skip the reading bits and go to the photos, there's a high-res gallery of 158 images above and a couple more below. Enjoy.