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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.

Hyundai, Genesis, Subaru warn their dealers about markups

Six weeks ago, word got out that Ford's VP of sales for the U.S. and Canada wrote one of those "It has come to our attention..." e-mails to the automaker's dealer body. The VP's problem was dealers trying to get reservation deposits for the Ford F-150 Lightning well above the official $100 fee. The tomfoolery resulted in interactions "with customers in a manner that is negatively impacting customer satisfaction and damaging to the Ford Motor Company brand and Dealer Body reputation." Two weeks later, GM told its dealers to cut out the reservation gaming and the markups on the 2023 Chevrolet Corvette Z06, banditry that's been going on for two years. Two weeks ago, Ford was back at it, this time about markups on the Bronco. Last week, Asian automakers swept into the melee, with Hyundai and Genesis, Subaru, and Infiniti writing letters to their dealers to deliver some variant of, "Stop pissing off the customers." Automotive News reported an SVP at Hyundai Motor America and the COO at Genesis Motor North America sent letters to their dealers expressing disappointment at "certain pricing practices which, if left unchecked, will have a negative impact on the health of our brand." One of the practices mentioned was dealer markups, another was the bait-and-switch, with dealers advertising one price then charging a higher price once the customer showed up at the lot. The letters acknowledged that dealers are separate companies to the automakers and have the right to set their own prices. The automakers cannot interfere with that; their leverage is distributing allocations and perks such as advertising support and financial incentives. So, like a movie boss letting the protagonist go on a technicality, the brands wrote, "we cannot stand idly by watching the actions of the aforementioned dealers undo all the efforts we collectively have put into making these brands what they are today." Jalopnik got tipped to a letter Subaru of America CEO Thomas Doll sent to that brand's dealers. Doll's polite yet insistent tone was the result of a letter a loyal Subaru owner sent to the automaker's VP of Customer Advocacy. In the market for a third brand-new Forester, the owner said they encountered a "tax" labeled a "Low Inventory Surcharge" of as much as $6,000, putting the Forester out of reach.

Infiniti boss De Nysschen confirms next-gen Q60 Coupe, ponders high-performance variants

We've known since mid-December that Infiniti's new global model naming convention would turn the current-generation G37 Coupe into the Q60 Coupe starting next year, but we haven't been clear on whether the model-range-formerly-known-as-G would get a successor, especially as its volume has traditionally been a lot lower than its sedan counterpart.
Thankfully, Infiniti president Johann De Nysschen (above) has stepped up to confirm that the newly revealed Q50 sedan will receive a two-door counterpart, though perhaps not as quickly as some would like. According to an interview with Australia's CarAdvice.com, De Nysschen says "the coupe we can probably expect two-and-a-half to three years down the road." That news also suggests that if there's an eventual convertible version, that it's a long way off, too. Why so long? Infiniti has "a lot of priorities" - priorities that undoubtedly include an already-confirmed front-wheel-drive small hatchback/crossover.
The report also indicates that Infiniti has some aspirations for stretching its new Q50/Q60 range in a higher-performance direction to take on competitors like BMW and Audi, the latter being De Nysschen's former employer. There's far from a firm timetable offered, of course, with De Nysschen saying "someday in the future we will be able to offer more high performance versions [of Q50] than we have today... the dynamic capabilities of this platform are very significant. It can handle far higher power than the engines we are using at launch."