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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

2018 Infiniti QX80 Drivers' Notes Review | Big, brash and big

When it comes to body-on-frame, full-size SUVs, it seems every automaker has the same strategy. Offer one version as a more affordable, workman-like model, and another one as the plush luxury model. Ford has the Expedition and the Navigator, Toyota has the Land Cruiser and the LX 570, GM has the Tahoe and the Escalade. Over at Nissan, the pairing is the Nissan Aramada and the Infiniti QX80. We recently reviewed the Nissan version, and we just had a turn in the Infiniti. So how did the Infiniti fare against its proletarian twin? Read on to find out. Associate Editor Joel Stocksdale: So here's the thing about the Infiniti QX80: It's literally just a flashier Nissan Armada. As I sat down to write my thoughts, I took a second look at what I wrote about the Nissan-badged version, and I realized almost everything on my mind I already covered. The thing is enormous. Walking up to it, it seems like it might be an inch taller than me (5'11"). It's pretty wide, too, and the width is consistent all the way up. But it is still easy to drive with light steering and very good visibility. The 5.6-liter V8 sounds lovely and seems well-matched to the truck, and the transmission shifts smoothly and picks gears well. The real problem I see is that my feelings about the QX80's interior are nearly identical to those of the Armada. They're virtually identical, especially when comparing the higher trim Armadas. They have the same infotainment, the same buttons. There are a lot of buttons, too, scattered seemingly haphazardly and are difficult to use, especially with the very dated infotainment system. The dash design and shape of the wood are the same, and so is the steering wheel. The only things I could tell were really different were the shift knob, the gauge faces and the quilted leather seats. And Nissan offers a version of the latter on the Armada Platinum Reserve. I'm dwelling on this a bit because the Infiniti QX80 is not cheap. The four-wheel-drive one we had here in Michigan had a base price of $68,845. That's a few thousand more than the aforementioned Armada Platinum Reserve, and I don't see how the Infiniti is worth that extra money. It seems all you're getting is a flashier exterior, especially with the $2,800 22-inch wheels, and a more prestigious badge. I need more than chrome and badges to spend so much money. My recommendation is just buy an Armada.

Driving the Honda Ridgeline and marveling at Tesla | Autoblog Podcast #638

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Consumer Editor Jeremy Korzeniewski and Associate Editor Byron Hurd. They start off talking about why more people should buy the Honda Ridgeline, because it's a pretty darned good truck. Next, Byron talks about some Hyundais. He shares his experiences with the 2020 Sonata Hybrid and talks briefly about the prototype 2021 Elantra currently occupying his driveway. Up next, Jeremy shares his feelings about the BMW X1 crossover he spent some time with, prompting the gang to mull over the notion of BMW's modern interpretation of "Ultimate Driving Machine." After that, Byron talks about towing his 1990 Mazda Miata with the 2020 Infiniti QX80, and then they wrap up with some discussion of the mystery surrounding the Ford Maverick and some comments on the current state of Tesla. Autoblog Podcast #638 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Hauling dirt with the 2020 Honda Ridgeline Driving the 2020 Hyundai Sonata Hybrid Discussing the 2021 Hyundai Elantra Driving the 2020 BMW X1 Towing a 1990 Mazda Miata with a 2020 Infiniti QX80 News Ford Maverick tailgate stamping leaks; we may see the whole thing in 2021 Tesla reports profit for fourth straight quarter, setting it up to join S&P 500 Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: