2005 Nissan Maxima Se Sedan 4-door 3.5l on 2040-cars

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2015 Nissan Murano is the Sport Sedan Concept of crossovers [w/video]

The edgy new Nissan Murano has just been officially unveiled at today's New York Auto Show following its online debut earlier this week. Wearing sheetmetal clearly inspired by the Japanese brand's creatively named Sport Sedan Concept, the third-generation Murano continues the tradition of offering dramatic styling and surprisingly premium interiors.
With headlights and a grille that look lifted from the Detroit Auto Show concept, the Murano arguably has more design presence than it's ever had before, thanks to its sharply styled headlights and in-your-face grille. The profile is highlighted by an aggressive kink in the beltline behind the C-pillar, while the rear of the crossover sports a smallish rear window and strongly styled C-shaped taillights.
The redesigned interior isn't quite as dramatic a departure as the exterior, with a layout reminiscent of the larger Pathfinder. The material quality, though, looks to be significantly improved for 2015. There are also no shortage of optional, upmarket interior items, like heated and cooled front seats, a heated rear bench and an upsized panoramic sunroof.

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.

Nissan owners complain to feds about rusting floors

"You can feel it's soft right here," Jeff Talman told KSHB. "Right under his driver and passenger seats, the floorboards were rusting from the inside out," a KSHB reporter said. "This is a seven-inch area where it's actually rotted up here," Talman said. That was Jeff Talman, just one of many who have had issues with rusting floorboards in Nissan Altimas. KSHB reported the National Highway Traffic Safety Administration has received more than 400 complains about rust issues in 2002-2006 models. NBC highlighted a Chicago woman's 2005 car, which had rusted so much the floorboards were actually crumbling. "The hole was big enough to fit her foot through," NBC reporter Tom Costello said. "I'm not Fred Flintstone. This is not a good thing," Marie DeMaria said. While NBC reports snow and road salt could account for rust damage in some vehicles, that's probably not the cause in places that don't get snow and ice. And complaints are coming in from all over the country. Both Toyota and Ford have recalled hundreds of thousands of vehicles in the past few years because rusting underbody parts made the vehicles fall apart. Despite the number of complaints, Nissan isn't recalling the Altima vehicle models in question. "It's not a safety recall problem that's going to cause immediate death and injury if you have a hole in the floor. As a result of that, what we've seen is that Nissan has been able to get away with this problem," auto safety expert Sean Kane told WBZ-TV. KSHB reports the age of the cars is another way Nissan is able to avoid covering cost to fix them. "Once it's out of the warranty period, obviously they don't have any legal obligation. It becomes more of a customer service issue of whether they want to deal with it or not," body shop owner Bill Eveland said. NBC did reach out to Nissan for comment, but the carmaker reiterated that both it and the National Highway Traffic Safety Administration do not consider the rust problem to be a safety defect. This video includes an image from Getty Images.