2014 Nissan Frontier Pro-4x on 2040-cars

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Nissan ZEOD RC on track and from behind the wheel

The Nissan ZEOD RC hybrid racecar has had mixed success in its competition life. It was invented to do a completely electric, high-speed lap at the 24 Hours of Le Mans, which it was able to do in practice. However, when the big event actually came, the car lasted less than an hour before it had to bow out with transmission issues. Nissan hasn't completely given up on its experiment, though. The experience (and possibly some of the tech) is going to help with the GT-R LM racer next year, and now the ZEOD is getting its chance to see how it handles the Top Gear test track.
Unfortunately, it's not The Stig piloting the ZEOD; instead, the magazine's motoring editor Ollie Marriage is the lucky man for the job. The car's sharp shape seems to be a good metaphor for how it handles because it just seems to dart around the track. Its tiny, turbocharged 1.5-liter engine with 400 horsepower and two electric motors put out a claimed 750 horsepower, and that seems like plenty for the relatively short Top Gear course.
As usual of Top Gear, the cinematography here is fantastic, and a second video shows off a single lap of the course from around the car. It's amazing to watch, especially with its big screen constantly showing the camera view out of the rear. Scroll down to see both.

Why China will soon lead the electric vehicle market

China could be the world's largest electric vehicle market by 2020, thanks to significant government subsidies and the major drawbacks of owning an internal combustion model there. The country's populace registered 75,000 EVs in 2014, and sales figures in 2015 looked even better. In a new video, Renault-Nissan examines the trend and why it happened. Chinese cities heavily encourage buyers to go green through vehicle incentives, but they also make it a hassle to be a polluter. In some places, there's a lottery to limit vehicle registrations and alternating driving bans for even or odd license plate numbers. However, these limits don't apply to EVs, and the country's automakers have benefited from the regulations by introducing small, inexpensive electric models, albeit with sometimes hilarious styling. China's emissions regulations will get even tighter in the coming years. In fact, a Honda exec recently predicted the company wouldn't be able to sell any models there without some form of electric assistance by 2025. Get a better look at the country's electric push to clean up vehicle pollution in Renault-Nissan's video. Related Video:

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.