Infiniti's Detroit-bound QX50 Concept is Barely a Concept, Boasts Variable Compression Engine

Steph Willems
by Steph Willems

Infiniti has had enough of the QX50’s voluptuous curves.

An edgier future awaits the brand’s midsize crossover, as shown by photos of the QX50 “Concept” released ahead of the North American International Auto Show. If this concept looks almost production-ready, that’s because it is.

Borrowing heavily from the earlier QX Sport Inspiration concept, the QX50 Concept’s updated design language isn’t the only way Infiniti plans to lure prospective buyers. Underneath the newly creased sheetmetal beats a very different kind of heart — one two decades in the making.

The concept bound for Detroit carries Infiniti’s radical turbocharged variable compression (VC-T) four-cylinder engine. Unlike other 2.0-liter turbos, this mill can be whatever the driver wants it to be.

The VC-T engine allows for greater efficiency and power when the conditions call for it, thanks to its ability to raise and lower the height of the pistons’ reach — a process that takes less than 1.5 seconds. This means both a low-compression (8:1) performance mode and a high-compression (14:1) efficiency setting. Infiniti hasn’t released exact specs, but it’s hoping for 268 horsepower and 288 lb-ft of torque.

Another feature found on the QX50 Concept is the automaker’s ProPilot semi-autonomous driver assist technology. While this isn’t a system that allows drivers to hand over full control to the vehicle, it will take over more of the work.

The QX50 is by no means a segment leader, but it has seen significant interest this year as buyers gravitate towards crossovers and SUVs. The next-generation QX50 should arrive as a 2018 model.

[Images: Infiniti]

Steph Willems
Steph Willems

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  • OldManPants OldManPants on Dec 30, 2016

    "its ability to raise and lower the height of the pistons’ reach" Is it antisemitism that prevents Rube's name being mentioned in articles about this approach?

  • LTDwedge LTDwedge on Dec 30, 2016

    Just bought the newest car I've ever owned. A (shudder) 03 Saturn Vue. (insert laughs, chortles & guffaws) 155k on the odometer, 4 cyl & trans replaced by the previous owners, 1 did the motor, 1 did the trans, neither did the brakes. So, for half a grand, a pretty looking hoopty that I hope I can get a year of weekly 200 mile beatings.(add more derision, nose coffee, etc) Thank you & sorry to waste your time...

    • See 2 previous
    • Koreancowboy Koreancowboy on Jan 03, 2017

      Congrats on the new car! I'm currently looking for a cash car because I'm bored with driving the RAV everyday (I also have a new CRV that's for the family). I'm targeting something that has had the major components replaced, similar to what you have now. My top choice is Honda (I love Hondas), but I'm pretty open to whatever. Also, it has to have a manual.

  • Namesakeone If I were the parent of a teenage daughter, I would want her in an H1 Hummer. It would be big enough to protect her in a crash, too big for her to afford the fuel (and thus keep her home), big enough to intimidate her in a parallel-parking situation (and thus keep her home), and the transmission tunnel would prevent backseat sex.If I were the parent of a teenage son, I would want him to have, for his first wheeled transportation...a ride-on lawnmower. For obvious reasons.
  • ToolGuy If I were a teen under the tutelage of one of the B&B, I think it would make perfect sense to jump straight into one of those "forever cars"... see then I could drive it forever and not have to worry about ever replacing it. This plan seems flawless, doesn't it?
  • Rover Sig A short cab pickup truck, F150 or C/K-1500 or Ram, preferably a 6 cyl. These have no room for more than one or two passengers (USAA stats show biggest factor in teenage accidents is a vehicle full of kids) and no back seat (common sense tells you what back seats are used for). In a full-size pickup truck, the inevitable teenage accident is more survivable. Second choice would be an old full-size car, but these have all but disappeared from the used car lots. The "cute small car" is a death trap.
  • W Conrad Sure every technology has some environmental impact, but those stuck in fossil fuel land are just not seeing the future of EV's makes sense. Rather than making EV's even better, these automakers are sticking with what they know. It will mean their end.
  • Add Lightness A simple to fix, strong, 3 pedal car that has been tenderized on every corner.
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