2000 Nissan Maxima Se Sedan 4-door 3.0l on 2040-cars

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Did Nissan send a ringer GT-R to run the 'Ring? [w/video]

It turns out that after toting a 7:08 time around the fearsome Nürburgring Nordschleife for the new Nismo-tuned GT-R, Nissan might not have been entirely honest about the car it was using. From what we've been hearing from a few different publications, the GT-R featured in the video isn't what we're going to see on the production model.
PistonHeads reported on the so-called "Time Attack" GT-R while it was in Japan for the Tokyo Motor Show, going so far as to detail the differences between it and the standard GT-R Nismo. And friends, this isn't just a matter of swapping tires. The mods made to the Time Attack car are far more comprehensive.
For a start, the TA produces more downforce thanks to larger aerodynamic pieces. It's some 110 pounds lighter than the standard car, thanks to new bucket seats. The ECU and dampers have been swapped for new units, and the brake pads are different as well. If you've read this far, you might be feeling slightly angry or betrayed that Nissan is toting numbers for a modified car. Don't be.

Ghosn: Low oil prices won't hurt EVs much

Carlos Ghosn might be the most unflappable automotive CEO around. Despite lower gas prices and signs that these prices do impact green vehicle sales, the CEO of the Renault-Nissan Alliance was at the World Economic Forum in Davos, Switzerland this weekend saying that people will continue to buy electric vehicles. "I don't think it is going to be slowing down," he said. "The people who are buying mainly for economic reasons may be deterred from it, but you have plenty of consumers buying EV for other reasons. On top of this, even though the price of oil is unpredictable – nobody has predicted last year that we would be at this level of oil price today and nobody knows where oil price will be next year or two years down the road – but what is predictable is that the regulation on emissions is going to get tougher in the various markets where we are present. So, our EV strategy is here not only to face too much dependence on oil or the cost of oil, but also to allow us to meet the very stringent regulations on emissions that are happening and will be happening in the future. So I can bet you that more and more car makers are coming to EVs and they're going to continue to build and sell EVs, even though the price of oil is coming down." The bit about oil prices and electric vehicles starts at 1:35 into the video. News Source: Nissan via YouTube Green Nissan Renault Emissions Gas Prices Electric Videos oil prices

Infiniti's new VC-T changes the rules of small turbocharged engines

The upcoming Infiniti QX50 crossover does not get our pulse racing, no matter how shapely the QX Sport Inspiration concept that previews it may be. No midsize SUV does, to be fair. But it has something special under the hood – the world's first production variable-compression-ratio engine. That means the QX50's 2.0-liter turbo four, which makes 268 horsepower and 288 pound-feet of torque, will have up to 27 percent better fuel economy. Here's how it works. The trend of moving to smaller, turbocharged engines carries with it one big falsehood. Under low load when the turbo isn't needed, these engines are less efficient than an equivalent engine without a turbo because of the low compression ratio the turbo requires. That is, if you never need the extra power, you're wasting fuel. Turbocharged (and supercharged) engines use a lower compression ratio to prevent detonation. When you force extra air in a cylinder and mix it with fuel, it's more likely to prematurely go boom. Lowering the compression ratio prevents this problem, but it's less efficient. Infiniti's VC-T promises the best of both worlds, with a compression ratio that ranges from 8.0:1 for high-power turbo needs to a 14.0:1 ratio for fuel-sipping efficiency. At its heart the VC-T engine is a simple idea, but it's complicated to explain. Consider yourself warned. The photo below from Infiniti serves as a good visual overview. For the truly nerdy, this patent application covers the mechanical concept. Instead of having the pistons connected to the crankshaft, Infiniti's engine has a pivot arm with a connection on each end. One end connects to the piston, the other connects to a second lower shaft, which is controlled by an actuator arm. At any given time the engine's pistons move up and down according to the lobes on the crankshaft. But the actuator arm can change the angle of the pivot arm up and down. That is, the pistons still move in the same motion with the same stroke, but phase the entire stroke up or down. Move the pivot up and there's less room at the top, which means a higher compression ratio. Move the pivot down and the compression ratio goes down, too. As an added bonus, the lower shaft eliminates the need for counter-rotating balance shafts. Infiniti says this system works constantly and can vary the compression ratio to any number between 8:1 and 14:1. It also uses electronic variable valve timing on the intake valves to switch into Atkinson-cycle combustion for greater efficiency.