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Race recap: 2015 Abu Dhabi Grand Prix is Germany rising as sun sets

Mercedes-AMG Petronas driver Nico Rosberg Rosberg doesn't attribute anything mystical to the form that got him ahead of teammate Lewis Hamilton. He said simply, "Before it was close in the other direction, now it's close in this direction." Mercedes non-executive chairman Niki Lauda went further, saying Rosberg's "brain has switched." Under the desert spotlights it switched so far ahead that Lewis Hamilton qualified nearly four tenths behind the German. Kimi Raikkonen flew the scarlet for Ferrari in third position. Being three spots ahead of Valtteri Bottas gave Raikkonen a huge advantage in locking up fourth position in the driver's championship. Even if he doesn't care about it, as he's publicly stated, Ferrari probably does. Teammate Sebastian Vettel was classified 16th after the German slowed down after making a mistake on his final hot lap, and neither he nor his engineer realized how quickly times were falling on a cooling track. He'd be promoted to 15th when Lotus driver Romain Grosjean was penalized for a gearbox change. Sergio Perez knocked it out of the park for Sahara Force India, claiming fourth ahead of Daniel Ricciardo in fifth for Infiniti Red Bull Racing. Williams driver Bottas was in sixth, in front of the second Force India of Nico Hulkenberg and the second Williams of Felipe Massa in eighth. Daniil Kvyat ensured both Red Bulls were in the top 10 with his ninth position, and Carlos Sainz got the upper hand in qualifying over his Toro Rosso teammate Max Verstappen for the final time this year, rounding out the top 10. Beyond Nico Rosberg's mind, one of his weaknesses was his slow starts. Those are stronger, too, the German tearing off away from the field when the lights went out. Hamilton bogged enough to have to defend from Perez behind, the Mexican trying to slide between Hamilton and Raikkonen on the run to the first corner. Rosberg held the lead into Turn 1 and likewise held it through Turn 21 on the last lap of the race, only ceding it during pit stops. Rosberg's 14th victory gets him level with Graham Hill on the wins list – on the anniversary of Hill's death in a plane crash – and marks the first time in his 10-year F1 career that he's won three races in a row. More proof of his strength: the last few races we haven't heard Rosberg ask for regular updates about what Hamilton's doing, he just drives. Hamilton gave it his best but that wasn't enough.

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.

Infiniti Q30 is the company's first small hatchback

Well, here it is. Despite every attempt to show us the car via teasers, Infiniti has made it to the week of the Frankfurt Motor Show before introducing the all-new Q30, the company's version of the jointly developed Mercedes-Benz A-Class hatchback and the first compact from the Nissan-owned luxury marque. The Q30 will be available with a wide and varied array of gas and diesel powertrains for its appearances in other markets. There will be two 1.6-liter gas engines, in 120-horsepower and 154-hp varieties, and two diesels. The oil-burners, which will not be coming to the US, displace 1.5 liters and 2.2 liters, respectively. As for North America, the Q30 will follow in the footsteps of its Mercedes cousins, the CLA- and GLA-Class, and offer a single 2.0-liter, turbocharged four-cylinder with 208 horsepower and 258 pound-feet of torque. Although it displaces just as much as the CLA's 2.0-liter turbo and matches that car's output, enthusiasts will appreciate the six-speed manual transmission being offered alongside the Mercedes seven-speed, dual-clutch automatic. Say what you will about its Mercedes roots, but Infiniti's decision to offer a six-speed stick here in the US should be respected. The specific set of drive wheels isn't mentioned, although if the A-, CLA-, and GLA-Class are any indication, the Q30 will offer standard front-wheel drive and optional all-wheel drive. That's speculation on our part, but it's a logical assumption. The Q30 has retained the A-Class' front McPherson struts and rear multi-link suspension arrangement. But while it uses an identical design, Infiniti has tuned the shocks to its own specification. Depending on trim, the Q30 will ride on either 18- or 19-inch wheels. Speaking of those trims, there are three of them. The base trim is, um, basic – Infiniti spilled very little ink on the entry level model. In fact, aside from a few simple descriptions, equipment details on the other two trims are quite scarce. Choosing the Premium line will net you unique 18-inch wheels, LED fog lamps, heated door mirrors with body color housings, and twin chrome exhausts. The Sport brings a bit more to the table, making a functional change by lowering the ride height by 0.6 inches and fitting 19-inch alloys. Gloss black and dark chrome accents on the more aggressive front and rear fascias round out the exterior enhancements.