The updated 2018 Range Rover has gone official, just a day after it was leaked in an online video.

Like the smaller Range Rover Sport, the headlining changes to the British SUV flagship include a new plug-in hybrid (PHEV) powertrain and the addition of the company's dual-screen infotainment system, along with other material and equipment upgrades inside and out.

While final pricing and specifications are yet to be confirmed, we do know that the MY18 Range Rover will kick off at $190,000 plus on-road costs when it arrives in Australia next March.

Kicking off the updates is the exterior which, like its Range Rover Sport sibling, gets a minor makeover to bring it in line with the recently-launched Velar.

A revised front grille sees the addition of a gloss black surround and new mesh (varies depending on model), while there's also a refreshed front bumper design with wider vent blades. The clamshell bonnet has also been lengthened.

On the sides there are new accents and vent trims, which can be specified in satin body colour or satin graphite 'Atlas'. At the rear, there's a new bumper design with exposed trapezoidal tailpipes. There are also two new exterior colours for 2018; Rosello Red and Byron Blue.

Like the Sport, the Range Rover gets an array of new LED headlight options, including Matrix and 'Pixel-Laser' units. The bulb count ranges from 24 to 144 LED units, with the latter Pixel-Laser option capable of projecting light more than 500 metres ahead of the vehicle.

Range Rover says the new headlights are more energy efficient and "designed to last the lifetime of the vehicle", while accompanying standard features include automatic on/off, signature LED daytime-running lights and powered washers.

Inside is where some of the more significant changes have been made, with the flagship Range Rover adopting the new Touch Pro Duo dual-screen infotainment system that debuted in the smaller Velar.

At the heart of the setup are two 10-inch high-definition touchscreens stacked on the dashboard - the upper display controls navigation and media functions, while the lower one can be used to toggle climate control settings and seat functions like ventilation and massaging.

The higher screen can also be angled to avoid glare and improve visibility, while the lower unit is accompanied by two rotary dials for adjusting functions like the cabin temperature and seat ventilation. Additionally, this screen can be used to manage media and phone functions when the upper screen is in use for something like navigation.

Drivers are treated to a new 12-inch 'Interactive Driver Display' with several menu options, including dual dial, single dial and extended mode views. The new display is complemented by an upgraded head-up display (HUD) that projects a 10-inch full-colour snapshot with information like speed and navigation prompts.

New steering wheel controls are carried over from the updated Range Rover Sport, and feature touch-capacitive buttons and illuminated icons, while a new voice recognition system developed with Nuance is also offered.

Other technology highlights include a new 10-inch rear entertainment system option, Remote Intelligent Seat Fold technology - which allows users to fold the seats via a smartphone app - up to 18 connection points in the cabin like USB, HDMI and 12V inputs, along with a 4G WiFi hotspot.

The new Range Rover is available with an array of new or updated driver assistance technologies, too, with systems like autonomous emergency braking (AEB), rear-view camera, lane departure warning and rear parking sensors fitted as standard.

Higher-end tech like adaptive cruise control, blind spot monitoring, traffic sign recognition, 360-degree parking cameras, rear cross traffic alert and automatic parking assistant are optionally available as part of various extra-cost packages in Europe – Australian specifications and options are still to be announced.

Range Rover P400e PHEV

The freshest face in the updated Range Rover line-up is the new P400e variant, which is a plug-in hybrid (PHEV) replacing the previous model's diesel-electric hybrid offering.

First seen in the smaller Sport, the Range Rover P400e's powertrain combines the company's 221kW 2.0-litre Ingenium turbo petrol engine with an 85kW electric motor, making for combined outputs of 297kW and 640Nm.

In terms of green car capabilities, the P400e uses as little as 2.8L/100km, while claiming an all-electric range of up to 51 kilometres from its 13.1kWh lithium-ion battery pack.

Like the Range Rover Sport P400e, the Range Rover PHEV can be charged in as little as 2 hours 45 minutes using a dedicated 32-amp wall box, and features two driving modes that allows the vehicle to combine both petrol and electric power, or utilise electric power only.

Customers can use the InControl smartphone app to monitor charging status, along with receiving alerts if there has been an error or if the cable has been disconnected from the vehicle.

Range Rover SVAutobiography Dynamic

Sitting atop the range is the luxurious, yet performance-focused SVAutobiography long-wheelbase variant. For 2018, the flagship model gets an uprated 416kW/700Nm 5.0-litre supercharged V8 (up from 404kW).

The slight power bump helps it to shave 0.1 seconds from its 0-100 sprint claim, now sitting at 5.4 seconds.

Five exterior colour options are available for the SVAutobiography, including Firenze Red (pictured) - exclusive to the flagship variant. Unique features include a 22-inch wheel option, Graphite Atlas exterior highlights, and metal tailpipe finishers, while an array of interior trim options are available for added exclusivity.

Engines

Other than the P400e and SVAutobiography, engine choices for the Range Rover are largely unchanged from the outgoing model.

Diesel power is available in both 190kW 3.0-litre TDV6 and 250kW 4.4-litre TDV8 guises, while there's also a 3.0-litre supercharged petrol V6 with 280kW.

There is one upgrade, however, to the 'standard' 5.0-litre supercharged V8, which gets a slight power bump from 375kW to 386kW.

Australia

The 2018 Range Rover is priced from $190,000 plus on-road costs locally, with first deliveries expected in March 2018.

However, full pricing and specifications for the upgraded range are still to be finalised by Jaguar Land Rover's (JLR) Australian arm, so stay tuned for an update closer to launch.

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