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Infiniti's QX Sport Inspiration is still attractive, in Paris, and now gray

Yes, crossovers tend to be boring. But this one is pretty! Then we remember it's going to turn into the front-drive-based QX50, so we automatically lose some interest. But the wheels will be driven by Infiniti's new VC-Turbo engine, which is kind of exciting! And for the 2016 Paris show, those wheels are bigger – 22-inchers in place of the 21s that the QX Sport Inspiration concept debuted with in Beijing earlier this year. (It's hard to tell a difference in the photos, but you can bet the imaginary ride of this concept will suffer, imaginarily.) The 22s are also painted bronze now along with the brake calipers, and the whole vehicle gets a coat of matte gray paint to replace the silver it was originally shown with. There's also some new brown leather in the previously very black and white interior. It's still pretty black and white, actually. Then there's the variable-compression-ratio VC-Turbo engine that will power the production QX50. We're getting a better look at this 2.0-liter four-cylinder turbo in cutaway form at the Paris show, and it continues to fascinate. It's a pretty neat thing, with a movable stroke position that allows it to vary the compression ratio between 8:1 for performance and 14:1 for efficiency (when the turbo isn't needed). That might not sound terribly cool, but it's a pretty big step forward in the march of efficient power. So yeah, crossovers can be boring, but at least this concept and the production car that will soon follow it have a few things going for them. Related Video: Featured Gallery Infiniti QX Sport Inspiration: Paris 2016 View 12 Photos Related Gallery Infiniti QX Sport Concept Related Gallery Infiniti QX Sport Inspiration concept for Paris View 10 Photos Image Credit: Live photos copyright 2016 Drew Phillips / Autoblog Paris Motor Show Infiniti Crossover Concept Cars Luxury 2016 paris motor show infiniti qx sport inspiration concept

Infiniti Prototype 9 is a wonderfully beautiful EV grand prix car

Few automobiles are as elegantly beautiful as the open-wheel grand prix cars of the 1940s, '50s and '60s. The simple, slender shapes of these cars bear no extravagant flourishes or adornments. The purposeful design is what gave these cars their beauty, and it's these classic machines that inspired the new Infiniti Prototype 9. Teased earlier this week, this concept blends old and new, with classic lines hiding a modern all-electric powertrain. The Prototype 9 will make its full debut next week at the 2017 Pebble Beach Concours d'Elegance. Infiniti says the car was built around a simple idea: what would a 1940s Infiniti grand prix car look like? While the silver paint may be more German than Japanese, the design could easily be mistaken for an actual '40s grand prix car. Only the Infiniti-styled grille gives it away. Everything about it, from the thin bias-ply tires wrapped over center-locking wire wheels to the bulging screws around the driver's seat, is pitch perfect. Underneath that achingly long hood rests a prototype electric motor and battery from Nissan's Advanced Powertrain Department. The combo sends 148 horsepower and 236 pound-feet of torque straight to the rear wheels. That's good enough to send the svelte 1,962 lb car to 62 mph in just 5.5 seconds. Top speed is right at 106 mph. While speed may die off towards the top end, all that torque and a 43/57 front to rear weight distribution should make the Prototype 9 a riot on a small, tight circuit. There's only enough juice in the battery for about 20 minutes of flat-out racing. The handmade steel body rests on a steel ladder-frame chassis. The front suspension uses a leading-arm rigid axle with transverse leaf spring while the rear uses a De Dion axle, also with a transverse leaf spring. The Prototype 9 also uses old-school hydraulic rotary type dampers. There's no power steering and no brake booster for the four-wheel disc brakes. The car was designed and built by a number of different departments within Infiniti and Nissan. A simple sketch expanded as more and more designers and engineers wanted to have a hand in the project. The steel body panels were all shaped and hammered by hand. The bare cockpit is only adorned with a thin seat, three gauges, a few switches, a gear selector and the steering wheel. The gauges are set into a fixed aluminum hub in the center of the steering wheel.

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