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Infiniti's QX Sport Inspiration is still attractive, in Paris, and now gray

Yes, crossovers tend to be boring. But this one is pretty! Then we remember it's going to turn into the front-drive-based QX50, so we automatically lose some interest. But the wheels will be driven by Infiniti's new VC-Turbo engine, which is kind of exciting! And for the 2016 Paris show, those wheels are bigger – 22-inchers in place of the 21s that the QX Sport Inspiration concept debuted with in Beijing earlier this year. (It's hard to tell a difference in the photos, but you can bet the imaginary ride of this concept will suffer, imaginarily.) The 22s are also painted bronze now along with the brake calipers, and the whole vehicle gets a coat of matte gray paint to replace the silver it was originally shown with. There's also some new brown leather in the previously very black and white interior. It's still pretty black and white, actually. Then there's the variable-compression-ratio VC-Turbo engine that will power the production QX50. We're getting a better look at this 2.0-liter four-cylinder turbo in cutaway form at the Paris show, and it continues to fascinate. It's a pretty neat thing, with a movable stroke position that allows it to vary the compression ratio between 8:1 for performance and 14:1 for efficiency (when the turbo isn't needed). That might not sound terribly cool, but it's a pretty big step forward in the march of efficient power. So yeah, crossovers can be boring, but at least this concept and the production car that will soon follow it have a few things going for them. Related Video: Featured Gallery Infiniti QX Sport Inspiration: Paris 2016 View 12 Photos Related Gallery Infiniti QX Sport Concept Related Gallery Infiniti QX Sport Inspiration concept for Paris View 10 Photos Image Credit: Live photos copyright 2016 Drew Phillips / Autoblog Paris Motor Show Infiniti Crossover Concept Cars Luxury 2016 paris motor show infiniti qx sport inspiration concept

Infiniti Q30 will debut at Frankfurt Motor Show

The Infiniti Q30 made its debut as a svelte concept at the 2013 Frankfurt Motor Show. Now, two years later, the luxury hatchback will make a big return to the German show in September to launch in production guise. Before the end of the year, the first Q30s will start showing up for sale in European showrooms to take on rivals like the Audi A3. To tease the launch, Infiniti has released this single image of the Q30 going through final validation testing on the road. Unfortunately, it's still wearing a very effective camouflage pattern – just like some previously spied examples. Still, we can tell that there are definite similarities to the hatchback's stylish QX30 compact crossover sibling, which is also on the way. Both of them have sharply pointed, narrow headlights and steeply raked hatches. We can also just make out the deeply creased swage line that cuts through the front door handles and then dips down in this photo. Infiniti promises more details to come about the Q30 before the Frankfurt launch. At least for European examples, assembly is reportedly earmarked for the Sunderland factory in the UK. Related Video: Infiniti Q30 to debut at Frankfurt IAA 2015 All-new Q30 compact entry to debut 90 days from today to the public Infiniti's first-ever compact car currently going through validation and dynamic tuning in Europe Sales to begin in Europe before end of 2015 HONG KONG – Infiniti will unveil its first-ever compact car at the International Motor Show in Frankfurt in September this year (September 17 to 27). Two years after the Infiniti Q30 Concept debuted at the 2013 Frankfurt show, the production version of this segment-spanning compact car will be revealed at the show this year. Infiniti is in the final stages of preparing the launch. Dynamic testing and ultimate validation is currently taking place across the UK and throughout mainland Europe where development of the vehicle has been completed at the company's Engineering Center in Cranfield, UK, since 2014. The Q30 will go on sale in Europe towards the end of 2015 with other markets to follow subsequently. More news on the Infiniti Q30 active compact will be released closer to the Frankfurt show in September. About Infiniti Infiniti Motor Company Ltd. is headquartered in Hong Kong with sales operations in over 50 countries. The Infiniti brand was launched in 1989. Its range of premium automobiles is currently built in manufacturing facilities in Japan, the United States and China.

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.