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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:

2022 Infiniti QX55 pricing is out, and it carries a premium over the standard QX50

Pricing for the coupe-ified 2022 Infiniti QX55 crossover is out, and just like every other coupe-like version of a crossover, it’s more expensive than the regular one.  For starters, the QX55 comes with standard all-wheel drive. It also starts at the second trim up the QX50Â’s hierarchy, Luxe. The premium over an equivalent QX50 is $3,000, landing the QX55 at a $47,525 starting price, including the $1,025 destination charge. There are only two other trims available: Essential and Sensory. A QX55 Essential starts at $52,625 and adds leather seats (heated/cooled in front), a heated steering wheel, navigation, 16-speaker Bose audio and a 360-degree camera. For a little more cash, you can tack on a ProAssist and ProActive package to the Essential trim for a host of driver assistance features, including all the goodies weÂ’re accustomed to in NissanÂ’s ProPilot Assist. The last and top trim is Sensory, and it starts at $58,075. You get all the packages and features of the lower trims, plus a motion-activated hatch, semi-aniline leather seats, open-pore wood trim, tri-zone climate control and ambient lighting. Unlike the regular QX50, there is no top-of-the-line Autograph trim. If youÂ’re interested in a QX55, Infiniti says itÂ’s opening up a digital reservation program today. If you reserve one via this method and go through with the purchase or lease, Infiniti promises you the choice of “a tasteful trendsetting gift.” Your options include a Transparent Sound speaker, Away luggage bundle or a Tom Dixon Brew coffee set. QX55s will start landing in dealers this spring, where you can buy one the old-fashioned way, sans gift. Related video:

Dodge Viper and Jaguar XK revival | Autoblog Podcast #543

On this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Green Editor John Beltz Snyder and Consumer Editor Jeremy Korzeniewski. We talk the possible rebirth of the Dodge Viper and Jaguar XK, as well as the recent goings-on at Tesla. Then we share some of our experiences driving in Europe. We also discuss the cars we've been driving, and help spend another listener's hard-earned dough in this week's "Spend My Money" segment. Autoblog Podcast #543 Your browser does not support the audio element. Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Dodge Viper and Jaguar XK to make a return? Tesla Model 3 braking issues and Elon Musk vs. media Driving in Europe Cars we've been driving: Porsche Panamera Turbo S E-Hybrid Sport Turismo, Infiniti QX50, Range Rover Velar Spend my money Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: Auto News Green Podcasts Dodge Infiniti Jaguar Land Rover Porsche Tesla Car Buying Used Car Buying Driving Safety Performance jaguar xk infiniti qx50