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A look inside Infiniti's variable-compression engine

We're sympathetic to anyone who had trouble understanding what's going on with Infiniti's new variable-compression engine. While we got a full tech briefing on the novel VC-Turbo back in August, the visual aids were lacking. The cutaway engine Infiniti brought to the Paris show fixes all of that. You can thank the little green and pink lines on the cutaway for making the whole idea a little more clear. Click through the gallery to see two lines – one green and one pink – that represent the different strokes allowing for different compression ratios. Remember, the compression ratio is the amount of volume in the cylinder on intake compared to the amount at the end of the compression stroke. Leave more room at the end and you lower that ratio. The length of the stroke doesn't change with this system, but where it sits along the cylinder does. Hence those two lines. The variable compression ratio allows this new turbocharged engine to maximize fuel economy when the turbo isn't needed by raising the compression ratio. It will see its first use in the next Infiniti QX50 crossover, previewed by the QX Sport Inspiration concept that's also on display in Paris, and has performance targets of 268 horsepower and 288 pound-feet of torque. After, it will migrate to other Infiniti and Nissan vehicles, with transverse front-drive-based applications first in line. Eventually, it's likely to completely replace Nissan's corporate 3.5-liter V6. We'll be poking around the engine a little more in Paris today to try and get some more info. For now, enjoy those cutaway images and those friendly little lines. Featured Gallery Infiniti VC-Turbo engine cutaway View 14 Photos Paris Motor Show Infiniti Nissan Technology Emerging Technologies engine 2016 paris motor show

Infiniti releases first image of premium compact Q30 Concept

Behold, the Q30 Concept. Slated for a worldwide debut in Germany next month at the Frankfurt Motor Show, this concept previews a new entry-level premium compact that Infiniti hopes will attract younger buyers to the brand, as well as give it a competitor in a burgeoning new class that's quickly filling up with options.
What will set the Q30 apart? Aside from a bold and aggressive design that picks up where the new Q50 and many concepts have left off, Infiniti says the shape combines elements from three bodystyles, all of which appeal to the sort of buyer it's hoping snare. Can you guess which three? No peeking at the press release down below. Give yourself ten arbitrary points if your answer was coupe, crossover and hatchback.
Infiniti promises a ride height that will be high enough to earn crossover credentials, and we're guessing it's got an actual hatch back there, which leaves the coupe. Where's the coupe in the Q30's design? The influence of a two-door is a little more difficult to see with the naked eye, but what the Q30 shares with some four-door coupes on the market is a roofline that peaks and begins to slope back down before the B-pillar and rear set of doors.

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.