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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

Six luxury-car features I'm ashamed to admit I love

A hot compress felt wonderful on my sore back. The methodical kneading of my shoulder blades loosened the knots that formed over several hours of driving. The Swedish-style pulses firing into my lumbar region released more tension.
I wasn't getting a much-needed massage following a recent road trip. I was getting it during the road trip.
I grew up riding in the back seat of a 1976 Chevy Nova. But once you use these lux features, it's easy to go soft.

Infiniti delays fastback-like QX55 crossover until late 2020

Infiniti confirmed it has delayed QX55 production by about five months. The as-yet-unveiled crossover is a swoopier, more stylish evolution of the QX50 with a fastback-like roof line inspired by some of the company's past models. The Nissan-owned company informed its suppliers production will start in November 2020, not in June as previously announced. It explained it needs to "ensure production capability" at the Aguascalientes, Mexico, facility that will manufacture the model. It didn't provide additional details, though a spokesperson confirmed the new timeline to Automotive News. The factory — a joint-venture between Mercedes-Benz parent company Daimler and Nissan — also makes the QX50, the A-Class, the Kicks, and the Sentra, among other models. "Production schedules are internal and due to various operation priorities can move — sometimes forward, sometimes backward — as a normal course of business," a spokesperson told Autoblog.  The QX55 is based on the aforementioned QX50, and spy shots confirm the two models share several design cues when viewed from the front. Minor nameplate-specific details will set the 55 apart from the 50. It's a different story out back, where the 55 ditches the 50's family-friendly silhouette for a fast-sloping roofline penned with an eye on the first-generation FX released for the 2003 model year, five years before the original BMW X6.  Infiniti is not yet revealing technical specifications, but we expect the variable-compression VC-Turbo engine will be one of the available powertrains. The turbocharged, 2.0-liter unit makes 268 horsepower and 280 pound-feet of torque in the QX50. It also returns 26 mpg in combined driving, according to the EPA. What remains to be seen is whether the delay also affects the car's unveiling date, which hasn't been publicly announced yet. An Infiniti spokesperson told Autoblog the QX55 is scheduled to make its debut "in the next few months," and pointed out it's one of five new models due out in the next three years. When it does arrive, the Infiniti QX55 will compete in the same segment as the BMW X4 and the Mercedes-Benz GLC Coupe.