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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

Pebble Beach Concept Car Lawn adds class to the grass

While Pebble Beach is traditionally thought of as the refuge of the pristine and pricey vintage vehicles of the world, there's no shortage of newer vehicles on display. And when we say "new," we mean really new. As in, not even in production new. This is the concept car lawn, and it's home to an eclectic group of vehicles from past and present.
Of course, calling it the "concept car lawn" is a bit of a misnomer this year (as it has been in previous years, too). Production models like the Alfa Romeo 4C were on display, alongside known quantities like the Hennessy Venom GT and modified versions of already-on-sale models, like the Rolls-Royce Phantom Drophead Waterspeed Collection.
There were a few concepts on display, though. Toyota debuted the critically acclaimed FT-1 Concept in a new shade, while BMW's Beijing Motor Show stunner, the Vision Future Luxury, was also parked on the expensive grass. Also appearing were the Nissan GT-R in sheep's clothing, the Infiniti Q50 Eau Rouge, and the recently debuted McLaren P1 GTR.

Infiniti Q30 goes full monty before Frankfurt

Infiniti is finally tearing off the camouflage and showing the world what the Q30 luxury hatchback actually looks like. Set to make a full debut Frankfurt Motor Show on September 15, the five-door marks the entry of the Japanese premium brand into the compact hatch ranks. The company's designers did a fantastic job of bringing the major elements from 2013's concept to the street, though. Like the earlier design, the production Q30 wears Infiniti's rounded rectangle grille and a chrome strip along the edge of the hood. The headlights are also left squinting from the concept. The only major change to the front end is an adjustment to the lower air dam to make it a little more realistic for production. Sadly, Infiniti is only providing this single front three-quarters perspective on the upcoming five-door for now, but check out the C-pillar in the background to spot the similarly pointed design there, as well. The changes are actually more noticeable when comparing the Q30 with its platform-mate, the QX30 compact crossover concept. The hatchback noticeably softens many of the CUVs swoopy lines to be a bit more mainstream. This is especially true along the front where the big air intakes from the QX are made significantly smaller. Production of the Q30 is slated to start in Sunderland, England, by the end of the year. They should actually arrive in showrooms there before the calendar runs out. Still, we're looking forward to Frankfurt for a more complete view of Infiniti's little luxury hatchback. Related Video: INFINITI Q30 PREMIUM ACTIVE COMPACT SET FOR FRANKFURT IAA 2015 PREMIERE Daring, expressive design meets advanced ride and handling performance Category-breaking Q30 faithful to 2013 concept car World premiere for global media September 15th at Frankfurt Motor Show Hong Kong – The first ever Infiniti Q30 Premium Active Compact is ready for its world premiere at the International Frankfurt Motor Show in September this year. Featuring Infiniti's iconic design language, the all-new Q30 represents a category-breaking vehicle concept developed for customers seeking urban individuality. Its dynamic drive characteristics provide for Infiniti-typical confident and responsive performance as well as excellent ride and handling. Crafted trims and expressive interiors extend the striking design approach from the exterior into the passenger cabin.