2011 Infiniti G37 3.7l V6 24v Automatic Rwd Convertible Premium on 2040-cars

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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:

Popular Science magazine's Best Of What's New 2012 all ate up with cars

Popular Science has named the winners in its Best of What's New awards, the victors coming in the categories of aerospace, automotive, engineering, entertainment, gadgets, green, hardware, health, home, recreation, security and software. The automotive category did not go wanting for lauded advancements:
Tesla Model S: the Grand Award winner for being "the standard by which all future electric vehicles will be measured."
BMW 328i: it's 2.0-liter turbocharged four-cylinder gets called out for being more powerful and frugal than the six-cylinder it replaces.

2022 Infiniti QX50 starts at $40,025

Infiniti upped prices on the 2022 QX50, but at least some of the MSRP increase goes toward new features. Nissan's luxury arm made ProPilot Assist standard for all five trims, the driver assistance suite includes tech like steering assist, intelligent cruise control, speed limit assist, and distance control assist. Apple CarPlay is another included item for next year's model, as well as an auto-dimming rearview mirror, and more soft-touch luxuries for the rear quarters with keyless entry able to be activated by the rear doors now, LED welcome lights in the rear door handles, and a USB-C port for the aft chairs. The first four grades are front-drivers; adding all-wheel drive adds $2,000 to the tab. For 2022, top front-wheel drive Autograph bows out, making AWD the de facto standard. The trims and their pricing after the $1,025 destination fee, plus their differences from the 2021 model, are: Pure: $40,025 ($950) Luxe: $43,375 ($750) Essential: $47,825 ($2,000) Sensory: $52,525 ($1,400) Autograph AWD $57,975 (no change) On top of the other newly standard equipment, the Essential trim picks up a heated steering wheel, 16-speaker Bose Performance Series audio, climate-controlled front seats,  Luxe fits "leather-appointed seats," and offers an updated Appearance Package for $1,200. The bundle is composed of black mirror caps, body color rear diffuser, black mesh grille, black fender accents, a black liftgate finisher, and 20-inch black-painted, machine-finished wheels. A graphite headliner finishes the package inside.   Sensory snares some features formerly reserved for the Autobiography, like "leather-appointed" perforated seats, four-way passenger power-seat lumbar adjustment, heated outboard seats in the second row, ultrasuede interior trim, and a motion-activated liftgate.  The eight-strong color palette welcomes a new Slate Gray hue. Mechanicals don't change, every model powered by a 2.0-liter inline-four cylinder with 268 horsepower and 280 pound-feet of torque, routing its output through a continuously-variable transmission. The 2022 Infiniti QX50 should reach dealers later this month.