New Infiniti QX50 revealed with world's first production variable compression ratio engine

Joanna Estrada
November 24, 2017

We've been covering the development of the QX50 (a vehicle we haven't seen yet in Australia) since the mid-size SUV was first teased as a concept auto at the 2016 Detroit Motor Show. The QX50's sleeker new shape is also said to help with this, due to its 6% improvement in aerodynamic efficiency. The Audi Q5 rival features the world's first production-ready variable compression ratio petrol engine, and should arrive in the United Kingdom late 2018.

We're yet to see what the rear and interior look like, so stay tuned for an update once the QX50 is fully revealed.

A flexible interior includes sliding rear seats to expand boot volume from 895 litres to 1048 litres with up to 1699 litres with the rear seats folded putting it nearly on par with vehicles from the large SUV class. While we need to wait for European-spec boot capacity data, Infiniti reckons it'll swallow up three golf bags and still leave space for more stuff.

Infiniti say the engine's 200kW/380Nm outputs will bring best-in-class power and torque with the engine rivalling the torque and efficiency of a four-cylinder diesel.

Producing 272 PS and 390 Nm of torque, the VC-Turbo engine can adjust its compression ratio from 8:1 (max performance) to 14:1 (max economy), and is up to 35% more efficient than the old car's 3.7 litre NA V6.

The headline of the new Infiniti QX50 isn't the platform, however.

The new engine will be mated as standard to a continuously-variable transmission (CVT).

Flat out, the QX50 is claimed to be capable of accelerating from 0-60mph in 6.3sec and reaching a top speed of 143mph. Infiniti hasn't revealed homologation data for fuel economy and emissions, however.

Nissan's "ProPilot Assist" semi-autonomous technologies will also be included that can control the vehicle's braking and steering during highway settings.

Underpinning the 2018 QX50 is an all-new platform with a front wheel drive-biased platform that allow for both two and all wheel drive, constructed in part from super high tensile steel that both saves weight and increases torsional rigidity.

Other reports by Click Lancashire

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