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Infiniti Q Inspiration Concept shows a future with variable compression

For weeks, Infiniti has been teasing the Q Inspiration Concept ahead of its official debut at the Detroit Auto Show. Details were absent, but the design was clean, swoopy athletic. Not seeing any tailpipes on the rear end, we hoped it could sport some kind of electrified powertrain, but surmised that Infiniti could take the opportunity to further showcase its variable compression turbocharged engine technology. Now, Inifniti has officially taken the wraps off its Q Inspiration Concept, and has indeed chosen to use the stunning show car to demonstrate "near future applications" of the potent yet efficient VC-Turbo tech. VC-Turbo made its production debut in the 2019 QX50 at the 2017 Los Angeles Auto Show. Here, in the Q Inspiration, VC-Turbo allows Infiniti designers to make the most of the packaging, taking advantage of the compact powertrain to increase the size of the cabin while maintaining the footprint of a mid-size car. Electric automakers like Fisker, Lucid Motors and the like have been doing something similar with electric powertrains, but Infiniti's VC-Turbo allows the company to do something similar with technology that is ready for primetime, while still bridging the gap to more efficient future powertrains. VC-Turbo, as we've learned earlier, allows the engine to change and optimize compression ratios on the fly, between 8:1 for high-performance situations, to 14:1 for maximum efficiency. Mounted to the exhaust manifold integrated in the cylinder heads of the four-cylinder engine is a single-scroll turbocharger. The system, says Infiniti, provides the torque and response of a hybrid or turbodiesel powertrain without sacrificing efficiency. In the Q Inspiration, the power is directed to four wheels via a front-biased all-wheel-drive drivetrain. The system can direct torque to the rear wheels individually as needed. As a design study, the Q Inspiration is a success. The proportions and lines are sleek and attractive, accentuated by the car's white paint. There's kind of a lot going on up front, with a large "double-arch" grille at the leading edge. Everything behind that, though, looks particularly harmonious. Its elongated cabin and coupe-like dimensions help provide efficiency while maximizing headroom for the four occupants. It's a car that stands up to close inspection, as attention to detail makes it more interesting the closer you scrutinize it, inside and out.

2017 Infiniti Q30 First Drive

Audi and BMW have owned the premium C-segment for almost a decade now thanks to the A3 and the 1 Series (and 2 Series). Benz's A-Class has become less of a retiree's option and has spawned a popular (if not particularly good) sedan (the CLA) and a crossover (GLA). Down in the lower-class decks, machinery from Subaru is punching well above its weight, while Volkswagen's Golf owns the market in Europe. This all left perennial premium pretenders like Lexus and Infiniti with a problem: how to convince buyers their C-segment machinery was genuinely premium if they were based off a volume-selling donor body from Toyota or Nissan? Mercedes-Benz opened an odd window of opportunity for Infiniti. See, Benz's parent, Daimler, and Infiniti's motherships, Renault and Nissan, have had a technical alliance since 2010. A big technical alliance. So Infiniti was able to develop its hatch to sit atop the A-Class chassis, powertrain, and suspension architecture, though you'd barely know it by looking at the Infiniti from the outside. It has a style all its own, and you're not going to mistake a single angle on the Q30 for anything that comes out of Stuttgart. Nobody makes deeper cuts and curves into its metal than Infiniti. The Japanese brand claims that design is at its core, and whether you love or hate that design, it's hard to argue that point. The Q30 feels like a nicer, easier, more luxurious place than the A-Class on which its based. "Infiniti design is very three-dimensional on every panel. We want to give the sense and the feeling that every Infiniti has been made by an artisan, by hand, not by computer," the company's London-based design boss, Simon Cox, argued. Some will love it, some will hate it, and Infiniti can live with it either way. The point is that the brand is now on the field in a segment that is projected to keep growing at more than 9.4 percent globally, and it got there at a fraction of the normal cost of an all-new car, without having any easily identifiable cap tips to the Benz's far more conservative exterior design. The Benz bits are more obvious inside. Infiniti did such a good job of grafting its design ideas onto the interior hard points that it feels like a nicer, easier, more luxurious place than the A-Class, even if the Benz will be between eight and 10 percent more expensive in most markets. The dash top is clean, swooping, and stitched together beautifully.

The yin and yang of the 2017 Infiniti Q50 Red Sport 400

When we first drove the Q50 Red Sport 400, Infiniti had the car out at a prepared slalom-and-cone course in a large, open parking lot. The car was stacked up against another Q50 without the Direct Adaptive Steer steer-by-wire system, and the course was designed to show that the DAS-equipped Red Sport 400 (it's a $1,000 option) required less steering input to master the same course. With all due respect to Infiniti, which is invested in this unfortunate system and has been working hard to revise it, the comparison doesn't make a lot of sense. The non-DAS Red Sport 400 has a steering ratio of 15:1 in RWD and 16.7:1 in AWD forms. The DAS system can vary between 12:1 and 32.9:1 in RWD and 11.8:1 to 32.3:1 in AWD flavors. At its extremes, the DAS system's ratio is vastly different than the fixed-ratio cars. So sure, with a super-quick steering ratio available, the DAS driver's going to do less work. It's all in the gearing. Does this mean it's better, that the steering feel is more natural, that it's easier to hustle quickly? The amount the driver saws at the wheel isn't an indication of that, necessarily. After a few days in a rear-drive Red Sport 400, I'm saying that the spooky disconnection between the driver and the front wheels would be a severe deficit to a driver on a real autocross course. It's not like the DAS system is choosing bad ratios within its range, it's just not supplying the feedback to make it enjoyable. Knowing what your front tires are up to is critical. I can hear you saying right now, "But what Q50 Red Sport 400 owners are going to autocross their cars?" Sure, but it was just a means to an end: showing off the DAS in a good light. And in that case, it probably did. The thing is, in isolation, not back-to-back with a non-DAS car with a slow steering ratio, the DAS system has the same issues it's always had: It simply doesn't feel natural. It doesn't feel intuitive. There doesn't seem to be any real advantage over a slightly quicker rack. I don't hear about people making buying decisions based on how much work they have to do sawing at the wheel, do you? So, that's one side of the Q50 coin – one that's hard to ignore if you're an enthusiast and steering feel is an important connection between you and the vehicle you just dropped a large hunk of change on, and will be spending a lot of your time in. The other is that there's a really compelling reason to drive a Red Sport 400: The 3.0-liter, twin-turbocharged V6 is a monster.