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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

2016 Infiniti QX50 First Drive [w/video]

One crucial change to the 2016 Infiniti QX50 (formerly known as the EX35) may have just made the company's smallest crossover suddenly relevant. So how does one add appeal to an eight-year-old model, without any significant cosmetic or powertrain updates? By addressing its biggest flaw head-on: size. For the 2016 model year, Infiniti has stretched the QX50's wheelbase by 3.2 inches, and the crossover is now 4.5 inches longer overall. In addition to a roomier cabin – 8.3 cubic feet more to be exact – there's one number that sticks out above all else: four more inches of knee- and leg-room in the back seats. Like scoring an exit-row seat on your flight, the extra space may be just enough to change the experience. So how can the upmarket Japanese automaker justify costly changes to the platform when it's only moving 250 of these vehicles in the US per month? Americans can thank the Chinese for that. As in the US, sales of small crossovers are quickly rising in China – a country where being chauffeured is more common for those of means – and rear-seat passengers who can pay for a driver don't want to feel like they're sitting in the penalty box. The platform-sharing economics work, and in this case, everyone stands to benefit. Pricing is reduced by $500 from last year, with the rear-wheel-drive 2016 QX50 now starting at $35,445 after delivery. Infiniti says it considers the Acura RDX and Lexus NX as the QX50's direct competition, but it's worth noting that both of those competing models sell more in just one month than Infiniti's smallest crossover sold all of last year. The QX50 isn't likely to reach its competitor's levels anytime soon, but Infiniti hopes the roomier iteration will pique shopper interest. To help that cause, the 2016 model gets a few light cosmetic touches too. Up front it receives a new grille that's more in line with the brand's current design language, new LED fog and daytime running lights, new door mirrors with LED turn signals, revised side sills, and a new rear bumper. Beyond aesthetics, pricing is reduced by $500 from last year, with the rear-wheel-drive 2016 QX50 now starting at $35,445 after delivery. The all-wheel-drive version adds another $1,400 to that price. All models get more standard equipment, including a power moonroof, heated front seats, and the new LED accents. Inside the cabin, things look much as they did when the crossover first debuted as the EX35, back in 2007.

Red Bull Racing unveils RB10 as pre-season testing kicks off

Ladies and gentlemen, here's the car that will win the 2014 Formula One World Championship... probably. Maybe. The success of Red Bull Racing over the past several years means that the debut of its 2014 challenger is one of the more note-worthy events of the preseason, showing off the latest piece of aerodynamic mastery from Adrian Newey.
Like the Ferrari F14 T, the Red Bull RB10 features a more conventional nose, which still plunges rather dramatically ahead of the front wheels. We're seeing a very interesting split early in the season between the top teams like Red Bull and Ferrari, who are opting for a more traditional design, and the mid-pack challengers, which are being more aggressive with their aerodynamics. Seeing how this plays out during the season will be very interesting. As for RBR's design, it's attractive, but wasn't easy to pen, according to Newey, who found the turbocharged V6s a difficult piece in the new F1 puzzle.
"Whereas the V8s were a very well-known package, with these power units, the engine itself is easy enough to install, but then of course you've got the turbocharger, the intercoolers, and the electrical side in terms of the motor generator units and much bigger batteries," Newey told the official Formula One website.