2011 Nissan Juke Sl 6-speed Sunroof Nav Rear Cam 34k Mi Texas Direct Auto on 2040-cars

Auto blog

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's London Black Cab postponed because it can't meet emissions targets

Emissions concerns in London are causing headaches for Nissan, as the company continues its efforts to bring its Black Cab to the city's streets. A proposed ultra-low emissions zone could lead to standards in the city center that are so strict the gas-powered taxi can't meet them, AutoExpress reports. It's unclear just how low the new emissions standards may be, although AE references London's mayor, Boris Johnson, and his drive to make every London taxi emissions-free by 2018 as a particular thorn for the Japanese automaker. It's worth noting that the NV200 taxi is both cleaner and more fuel efficient than London's current fleet of iconic black cabs. That alone makes it seem like reason enough to get the new cabs on the streets. But it's the strictness of the proposed standards and the apparently set-in-stone nature of the NV200's current engineering that is holding up the cab's future. While Nissan offers an emissions-free e-NV200, it would reportedly need to completely reengineer the NV200-based cab to meet the future standards if they're approved. Whether that will happen, though, remains an open question.

Asian automakers still reluctant to use more aluminum

There's a logical progression of technology in the auto industry. We've seen it with things like carbon-ceramic brakes, which use to be the sole domain of six-figure sports cars, where they often cost as much as an entry level Toyota Corolla. Now, you can get them on a BMW M3 (they're still pricey, at $8,150). Who knows, maybe in the next four a five years, they'll be available on something like a muscle car or hot hatchback. Aluminum has had a similar progression, although it's further along, moving from the realm of Audi and Jaguar luxury sedans to Ford's most important product, the F-150. With the stuff set to arrive in such a big way on the market, we should logically expect an all-aluminum Toyota Camry or Honda Accord soon, right? Um, wrong. Reuters has a great report on what's keeping Asian manufacturers away from aluminum, and it demonstrates yet another stark philosophical difference between automakers in the east and those in the west. Of course, there's a pricing argument at play. But it's more than just the cost of aluminum sheet (shown above) versus steel. Manufacturing an aluminum car requires extensive retooling of existing factories, not to mention new relationships with suppliers and other logistical and financial nightmares. Factor that in with what Reuters calls Asian automaker's preference towards "evolutionary upgrades," and the case for an all-aluminum Accord is a difficult one. Instead, manufacturers in the east are focusing on developing even stronger steel as a means of trimming fat, although analysts question how long that practice can continue. Jeff Wang, the automotive sales director for aluminum supplier Novelis, predicts that we'll see a bump in aluminum usage from Japanese and Korean brands in the next two to three years, and that it will be driven by an influx of aluminum-based vehicles from western automakers into China. Only time will tell if he's proven right. News Source: ReutersImage Credit: Sean Gallup / Getty Images Plants/Manufacturing Honda Hyundai Mazda Nissan Toyota Technology aluminum