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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.

MotorWeek revisits 1990 Infiniti Q45

With the one-two punch of the Lexus LS 400 and Infiniti Q45 in the early '90s, Japanese automakers started taking the fight directly to the established V8-powered German flagships on American roads. Here, we get MotorWeek's take on the latter and probably lesser known of those luxury sedans. While not so impressive today, the Q45's 4.5-liter V8 with 278 horsepower and 292 pound-feet of torque was pretty good by the contemporary standards. The big sedan was also offered with an optional all-wheel steering system that made the model quite a capable handler. The rear end even stepped out a just little during MotorWeek's slalom. Unfortunately, styling is very polarizing with these early sedans. Where the early LS looks planted with its big, chunky lines on the outside, the Infiniti is a bit more delicate. The design just doesn't scream about being a flagship sedan. The interior doesn't help sell the car as the top of luxury, either. While MotorWeek likes some of the amenities inside, there are complains about the reused switches from the Nissan Maxima and the extensive use of plastic, rather than wood. With Infiniti now having its sights on the global premium market and soon entering the compact segment, it's fascinating to see the very roots of the brand.

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