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Infiniti's variable compression engine in the 2019 QX50 is the first of its kind

The world's first variable compression ratio engine is here, in a production car. That car is the 2019 Infiniti QX50, debuting this week at the Los Angeles Auto Show. The midsize crossover has seen a refresh that has brought it an all-new platform together with new driver assist features, but it's the engine that's the centerpiece here. Nearly everything is continuously variable under the hood of the QX50 – not only the new shift-by-wire XTRONIC CVT. The new VC-Turbo gasoline engine is able to change its compression ratio from 8:1 to 14:1, or anything in between depending of the driving situation; whether there is need for top-end power or turbodiesel-like torque from low revs, or optimized fuel economy. The pistons' reach is continuously adjusted by an electric "Harmonic Drive" motor, which controls a multi-link system, affecting the top-dead-center of the pistons and changing the compression. The engine can also switch between efficiency-maximizing Atkinson cycle and regular combustion cycle, on the go – and there's both multipoint injection and gasoline direct injection employed. The result is 268 horsepower at 5,600 rpm and 280 pound-feet of torque at 4,400 rpm; good figures for a 2.0-liter four-cylinder gasoline engine with a single-scroll turbocharger. Infiniti says that the FWD version's fuel economy of 27 miles per gallon combined is 35-percent better than the previous-generation V6 engine; in AWD guise, it reaches 26 mpg, which is a 30-percent improvement. The new engine is pretty much all-aluminum, but the vaguely magical-sounding "transformative multi-link components" behind the variable compression system are made from high-carbon steel alloy. The engine's multi-link system also enables it to do away with any balancing shafts, and Infiniti compares its smoothness to a V6 rather than a regular four-cylinder. In addition to the aforementioned tech, the VC-Turbo engine has the world's first active engine mount vibration damping system to smoothen its operation even further. Related Video:

Massive Airbag Recall Affects Seven Automakers

The recall of faulty airbag inflators supplied by Takata has exploded today to grow to seven automakers. In most cases, only models in certain high-humidity regions were affected because the National Highway Traffic Safety Administration found in its investigation that moisture played a role in determining whether there would be a problem. However, some companies opted for national campaigns. The exact number of affected models for these campaigns isn't yet known at this time. BMW is recalling an undisclosed number of 325i, 325Xi, 330i and 330Xi models from the 2001 through 2005 model years and the 2001-2006 model year versions of the 325Ci and 330Ci for the driver side and passenger side inflators. Only vehicles currently registered in Florida, Puerto Rico, Hawaii and the US Virgin Islands are covered under this recall. Neither Chrysler's filing with NHTSA nor its press release list the specific models affected, but a company spokesperson told Autoblog that at this time it only covers the driver and passenger side inflators for the 2006 Dodge Charger in Florida, Puerto Rico, Hawaii and the US Virgin Islands In most cases, only models in certain high-humidity regions were affected because the NHTSA found that moisture played a roll in determining if there would be a problem. Ford is recalling an estimated 58,669 cars that include the 2005-2006 model years of the Ford GT for the driver and passenger inflators, the 2007-2007 model years of the Mustang for the driver side and 2004 Ranger for the passenger side. It covers vehicles originally sold or currently registered in, wait for it... Florida, Puerto Rico, Hawaii and the US Virgin Islands. Honda is issuing three separate recalls regarding the problem. First, the company is recalling the 2002-2003 model years Civic, CR-V and Odyssey and the 2003 model year of the Accord, Element, Pilot and Acura MDX to replace the passenger's side inflator. This covers all models nationwide. Second, Honda is repairing the passenger's side airbag inflator in the 2003-2005 Accord, Civic, CR-V, Element, Pilot, the 2003-2004 model year versions of the Odyssey, the 2003-2005 model year Acura MDX and 2005 Acura RL. However, only for vehicles located in Alabama, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico and the US Virgin Islands. Owners will be notified in July. Finally, Honda is separately replacing some models' driver's side inflators.

Infiniti QX30 Concept is ready to join the compact crossover fray

Today, the compact crossover market is an automotive Klondike. Automakers are scrambling to stake their claim on an increasingly segmented, increasingly valuable landscape. That's especially true in the premium market, where every Audi Q3, BMW X1, Mercedes-Benz GLA, Lexus NX and Buick Encore sold takes up a piece of market share that requires a great deal of effort for another automaker, in this case Infiniti, to reclaim. That makes the new QX30 Concept, debuting this week at the 2015 Geneva Motor Show, an extremely important vehicle for the Nissan-owned brand. The QX30 Concept has already been "earmarked for production" and will be launched next year, according to Infiniti. When that happens, we'll see a compact CUV with toned down styling from the vehicle shown here, much like the upcoming Q30 production model. It's fair to say the looks of the QX30 are in direct opposition to those of the aforementioned Lexus NX. Where that car is sharp and angular, Infiniti's designers emphasized the "spontaneous and fluid" look of the new concept. Infiniti's most recent, Q50-inspired design language works nicely in a compact CUV form factor. The double-arch grille and its flanking headlights give the QX30 a refined, almost predatory look. That, as it turns out, is intentional. "The Q30 Concept was like a panther, lithe and slender. We transformed the QX30 Concept into a mountain lion, strong and muscular," Infiniti's Executive Design Director Alfonso Albaisa said in a statement. The strong, wavy character lines in the profile lead into the short, chopped rear overhangs. Above the beltline, the rear window is raked forward aggressively, lending the QX30 a coupe-like profile. In the cabin, we can already see the makings of a production car's interior, with two strong material choices – dark brown and blue leather – highlighting the dash. On the concept, purple accent lighting is emitted from the center stack's controls, while the violet shade carries over into what looks like a digital instrument cluster and the speaker surrounds in the doors. Sections of quilted leather on the seats, meanwhile, look very nice, but we doubt they will make it to production on what is ultimately going to be a reasonably priced vehicle.