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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

Tesla poaches Renault-Nissan communications boss Sproule

Need another sign that Tesla is growing into a force to be reckoned with? Bloomberg reports it has just snagged high-profile communications boss Simon Sproule from Renault-Nissan to become the EV maker's vice president of communications and marketing.
Sproule is an industry veteran, having spent 20 years at Nissan (where he grew to become CEO Carlos Ghosn's right-hand man). In addition, he logged stints at Ford, Jaguar (when it was still a Blue Oval-owned brand) and Microsoft. Despite all that experience, Sproule is still young, at just 45 years of age, as Bloomberg points out, yet he's held positions in the US, Japan and France over the years.
This is all good news for Tesla, which is in need of a strong spokesman outside of company CEO Elon Musk. It's been battling with the state of New Jersey and its governor, Chris Christie, over direct sales in the Garden State.

Weekly Recap: New bosses try to jump-start Cadillac and Lincoln

Both of America's domestic luxury brands seem to be stuck in neutral.
It's ironic that Cadillac and Lincoln got new bosses within days of each other this month. It's also a commentary on the fact both of America's domestic luxury brands seem to be stuck in neutral.