2009 Infiniti G37 X Sedan 4-door 3.7l Awd on 2040-cars

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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 is blazing an unconventional path to electrification

When it comes to electrification, Infiniti has a history of speaking a great deal but doing little. The Nissan-owned company's plug-in offensive will start in the 2020s, and it provided preliminary details about the technology that motorists can expect to find in showrooms in the not-too-distant future. Eric Rigaux, Infiniti's general manager of product strategy and planning, told Roadshow the firm's engineering department is putting the final touches on two forward-thinking electrified powertrains. The first one will run solely on electricity, while the second one will rely on a gasoline-powered generator to provide more range. Both are being developed to fit into a flexible new platform. Technical details about the electric setup remain vague, so we don't know how big of a battery pack Infiniti will use, or how many motors will draw electricity from it. However, Roadshow learned the gasoline-electric layout will never need to be plugged in, because a 1.5-liter, three-cylinder engine equipped with Infiniti's innovative variable-compression technology will produce the electricity it needs to run. The triple won't directly spin the wheels; it will channel the juice it creates to a battery pack. It's not a zero-emissions solution, but it's one that makes a lot of sense, because users won't need to wait for a charge, and they'll be able to drive for about 500 miles between fill-ups. The now-defunct Chevrolet Volt featured a similar drivetrain, but owners had the possibility of plugging it in. Infiniti won't give motorists that option; there won't be a plug anywhere on the car. Fluid-filled motor mounts and active noise cancellation will ensure the passengers don't feel or hear the triple whirring away. Meanwhile, two electric motors (one over each axle) will deliver between 248 and 429 horsepower; final specifications haven't been signed off yet. And, because power will come from gasoline, there's no need to integrate a bulky battery pack into the chassis. Infiniti's future gasoline-electric models won't require anything bigger than a 5.1-kilowatt-hour unit, which can unintrusively be stuffed under the trunk floor or sandwiched between the floor and the rear seat. Infiniti chose a crossover to inaugurate its battery-electric powertrain; the QX Inspiration concept (pictured) unveiled during the 2019 Detroit Auto Show shed light on what the model will look like.

Infiniti Q60 dies at year's end

In 2021, Automotive News' Future Product Pipeline coverage for the Infiniti brand contained a single entry for 2023: "Infiniti Q60 ends in 2023." Turns out the report of the Q60's death was true; the brand confirmed to Car and Driver that the coupe ends production at the end of this year. We wish we were surprised at the news or the rationale. An automaker spokesperson told the magazine, "We are focusing on the most popular luxury automotive segments such as crossovers and SUVs, as well as the upcoming EV we recently announced that will be built here in the U.S." The official justification didn't address the fact that dealers sold 2,728 units of the Q60 in the U.S. last year, 64 units fewer than achieved in 2020, and 2,315 units fewer than dealers moved in 2019 — the year Q60 sales fell off a cliff after selling more than 9,000 units in 2018. Consider this another step in the "three-phase company transformation" that Chairman Peyman Kargar is in the second stage of working through. The first phase of recovery ended this March, the luxury automaker getting back to profit globally. The current second stage that will revamp, electrify, and expand the lineup is predicted to last for the next four years. The spearhead will be the new QX80 SUV, planned for late next year or early 2024 with ambitions to challenge the Cadillac Escalade, Lexus LX, and Range Rover. That luxury club barred Infiniti from entry awhile ago, so Kargar's talking about profound turnaround. As for the Q60, the shame is that a car with sweet looks and even sweeter power never got the interior or driving dynamics to match. Perhaps the return of a much better Nissan Z can provide fodder for a proper Infiniti coupe once the luxury division has restored its momentum. The spokesperson told Car and Driver that Q60 inventory should last until well into 2023, so anyone looking for a 400-horsepower bargain with a six-speed manual should mark their calendar for early next spring.   Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.