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2015 Italian Grand Prix is smoke, mirrors, stalls, and stewards

For the first day-and-a-half of the Italian Formula One Grand Prix weekend, everything went to blueprint: Mercedes in front, Ferrari lurking, everyone else scrambling in their usual orders behind. Then qualifying came, and someone stirred the pot. About the only thing we expected was for Lewis Hamilton to put his Mercedes-AMG Petronas on pole position, the 11th time he's done it this year. He did it with a brand-new specification engine, one that represents not only an evolution in components, but also in power unit philosophy. Kimi Raikkonen lines up in second. It's been a long time since we read those words; the Iceman hasn't been on the first row since the 2013 Chinese Grand Prix, when he put his Lotus second on the grid behind... Lewis Hamilton. Raikkonen lined up just ahead of a Ferrari at that China race, then driven by Fernando Alonso. In Italy this weekend, he lined up in front of the Ferrari driven by his teammate, Sebastian Vettel, who qualified third. Both Ferraris benefitted from an upgraded power unit, ending a front-row drought for the scuderia that goes all the way back to Monaco in 2009 Germany in 2012. Nico Rosberg has a lot of work to do from fourth in the second Mercedes-AMG Petronas. Mercedes discovered a problem with Rosberg's engine but couldn't figure out the cause, so he reverted to the previous-spec engine he used in Belgium, one that's six races old. The lack of power hurt. Williams teammates Felipe Massa and Valtteri Bottas took fifth and sixth, with Massa seemingly given a team-ordered helping hand. Williams told Bottas to tow Massa down the front straight, giving Massa a blistering time in the first sector. Then Bottas did it again, ensuring he would line up behind Massa. The first Sahara Force India of Sergio Perez nabbed seventh, three places ahead of teammate Nico Hulkenberg in tenth, with Romain Grosjean in the Lotus behind Perez in eighth. Marcus Ericsson in the Sauber qualified ninth, but some clumsy driving saw him impede Hulkenberg twice. The stewards penalized Ericsson with a three-place grid penalty and two points on his superlicense, so Hulkenberg inherited ninth and Pastor Maldonado in the second Lotus inherited tenth. We hardly saw Hamilton during the race, because he led from the start, worked up a larger gap to second place on every lap, and didn't give up the lead for the whole event.

Pebble Beach Concept Car Lawn adds class to the grass

While Pebble Beach is traditionally thought of as the refuge of the pristine and pricey vintage vehicles of the world, there's no shortage of newer vehicles on display. And when we say "new," we mean really new. As in, not even in production new. This is the concept car lawn, and it's home to an eclectic group of vehicles from past and present.
Of course, calling it the "concept car lawn" is a bit of a misnomer this year (as it has been in previous years, too). Production models like the Alfa Romeo 4C were on display, alongside known quantities like the Hennessy Venom GT and modified versions of already-on-sale models, like the Rolls-Royce Phantom Drophead Waterspeed Collection.
There were a few concepts on display, though. Toyota debuted the critically acclaimed FT-1 Concept in a new shade, while BMW's Beijing Motor Show stunner, the Vision Future Luxury, was also parked on the expensive grass. Also appearing were the Nissan GT-R in sheep's clothing, the Infiniti Q50 Eau Rouge, and the recently debuted McLaren P1 GTR.

Infiniti's new VC-T changes the rules of small turbocharged engines

The upcoming Infiniti QX50 crossover does not get our pulse racing, no matter how shapely the QX Sport Inspiration concept that previews it may be. No midsize SUV does, to be fair. But it has something special under the hood – the world's first production variable-compression-ratio engine. That means the QX50's 2.0-liter turbo four, which makes 268 horsepower and 288 pound-feet of torque, will have up to 27 percent better fuel economy. Here's how it works. The trend of moving to smaller, turbocharged engines carries with it one big falsehood. Under low load when the turbo isn't needed, these engines are less efficient than an equivalent engine without a turbo because of the low compression ratio the turbo requires. That is, if you never need the extra power, you're wasting fuel. Turbocharged (and supercharged) engines use a lower compression ratio to prevent detonation. When you force extra air in a cylinder and mix it with fuel, it's more likely to prematurely go boom. Lowering the compression ratio prevents this problem, but it's less efficient. Infiniti's VC-T promises the best of both worlds, with a compression ratio that ranges from 8.0:1 for high-power turbo needs to a 14.0:1 ratio for fuel-sipping efficiency. At its heart the VC-T engine is a simple idea, but it's complicated to explain. Consider yourself warned. The photo below from Infiniti serves as a good visual overview. For the truly nerdy, this patent application covers the mechanical concept. Instead of having the pistons connected to the crankshaft, Infiniti's engine has a pivot arm with a connection on each end. One end connects to the piston, the other connects to a second lower shaft, which is controlled by an actuator arm. At any given time the engine's pistons move up and down according to the lobes on the crankshaft. But the actuator arm can change the angle of the pivot arm up and down. That is, the pistons still move in the same motion with the same stroke, but phase the entire stroke up or down. Move the pivot up and there's less room at the top, which means a higher compression ratio. Move the pivot down and the compression ratio goes down, too. As an added bonus, the lower shaft eliminates the need for counter-rotating balance shafts. Infiniti says this system works constantly and can vary the compression ratio to any number between 8:1 and 14:1. It also uses electronic variable valve timing on the intake valves to switch into Atkinson-cycle combustion for greater efficiency.