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Roller coaster or racecar, which pulls more Gs?

Looking for a thrill? You're not the only one. You'll find kindred spirits at airfields going up for a skydive, atop bridges and towers with bungees attached to their feet and standing in line for roller coasters at the local amusement park. But you'll also find them in the paddock at the racing circuit.
So what's the commonality? G-force. It's like gravity, only in each of these cases, it's experienced by human invention. But which activity subjects your body to the greatest amount of g-force? That's what Nissan set to find out.
Before putting them back in the cockpit, Nismo sent out two of its young hot-shoes - Jann Mardenborough and Mark Shulzhitskiy - to an amusement park in the UK with a camera and a g-force meter to find out if any of the coasters could produce as much lateral gravitational force as an LMP2 racing car. See what they found in the pair of videos, below.

Nissan IDX sports coupe future increasingly cloudy [w/poll]

There's a strong desire among enthusiasts for more inexpensive, lightweight, fun-to-drive, rear-wheel-drive cars to exist in a world that contrasts sharply with automakers' desire to make money. While we all love the feeling of controlling the back end with the throttle, front-wheel drive is king when it comes to affordable cars. One of the future bright spots in the rear-drive market appeared to come from Nissan with its pair of IDx concepts. The two showcars from the 2013 Tokyo Motor Show took liberal design inspiration from the classic Datsun 510 and mixed it with modern powertrains in very attractive little packages. However, some pretty dark clouds are reportedly now hanging over the project.
Last we heard, a production version was supposedly "in the plan" from the Japanese automaker, but its trajectory may have changed inside the company in the last few months. According to Pierre Loing, vice president of product planning for Nissan Americas, the issue is making the sports coupe profitable. While Nissan has access to rear-wheel drive platforms, they are all meant for more premium vehicles (read: they cost too much). Assuming around 60,000 annual sales, Loing tells Ward's Auto that making a dedicated chassis for the IDx just isn't a moneymaker. If the car still does see production, it'll be after 2016, he says.
The decision whether to build the IDx has been teetering for a while. Nissan spokesperson Dan Bedore previously told Autoblog that the coupe would need a groundswell of support from consumers and enthusiasts if is to actually have a shot at production. If you are among the hopeful looking to see this affordable, rear-drive performance car in showrooms, get some friends together and start letting Nissan know that you actually want it - you can start here by adding a Comment and voting in our poll, because we're going to send the results on to Nissan.

Nissan alters all CVTs to act less like a stretched rubberband

Among automotive enthusiasts, no one seems to hold a neutral opinion when it comes to continuously variable transmissions. CVTs are either praised for their ability to boost fuel economy or chided for their occasionally poor driving dynamics. Nissan is among the masters of these un-shifting gearboxes in the US, and it uses them in many vehicles in its lineup. However, for the 2015 model year, several models are getting a software update to make their CVTs a bit more like a conventional automatic.
To give drivers the option of feeling gearshifts while on the road, Nissan is adding its D-Step Shift Logic feature to the CVTs in multiple vehicles. Steve Powers, Nissan's senior manager of powertrain performance, told Autoblog the system forces the transmission to "hold a ratio and then shift" to simulate the way that a traditional automatic would. It's simply a change in software, but the company "can't do it to older CVTs," he said, because it would require changes to transmission logic, as well. According to Automotive News, the upgrade is coming to the 2015 Versa, Versa Note (pictured above), Sentra, V6-equipped Altima, Pathfinder and Quest. "We're rolling it out to all programs," said Powers.
Interestingly, buyer perception appears to be pushing the upgrade. John Curl, a Nissan North America regional product manager, told Automotive News that the decision to add the tech partially comes because some owners are bothered that the CVTs aren't changing gears. According to Powers, D-Step "avoids the rubber band feel," that many drivers didn't like. The different sensation of these transmissions seems like something consumers would notice during the test drive, or that the salesperson would inform them about. The same issue cropped up last year when the company was facing customer satisfaction problems among new buyers customers' unfamiliarity with the gearboxes.