Externally, the S-Class benefits from imposing styling with neat design details, such as the new set of bumpers, lights and a fresh grille that were introduced as part of the 2017 revisions. Yet, despite its vast external dimensions, the Mercedes disguises its bulk well, thanks to its sweeping roofline and the carefully sculpted lines cut into the flanks.

A bold grille, topped by the brand’s trademark three-pointed star, swept-back all-LED headlamps and tastefully applied chrome trim add a dash of glamour, while AMG Line trim also includes racy-looking 19-inch alloy wheels and a subtle bodykit.

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The Mercedes’ interior is even more impressive, as it’s beautifully built, supremely comfortable and plushly appointed. The wide dashboard features a pair of 12.3-inch TFT screens – one for the sat-nav, infotainment and energy use, the other for the speedo, rev counter, trip computer and optional night vision display.

Other highlights include the metal-finish eyeball vents for the air-conditioning, the precise action of the switchgear and the intuitive COMAND rotary controller.

As you’d expect, the fit and finish are flawless, while the materials are all top-notch. Lustrous Black Poplar wood trim covers the dashboard, centre console, door trims and steering wheel, plus there's a £1,740 soft Nappa leather trim option for AMG Line cars.

Sat-nav, stereo and infotainment

As you’d expect, quality is the watchword for the S-Class infotainment systems.

All models come with the 12.3-inch high-definition screen, sat-nav, digital radio and single CD/DVD drive as part of the COMAND Online system.

You also get Bluetooth and a WLAN hotspot facility, but if you want to use Facebook and various on-board apps via the Connect Me package you’ll need to tick an option box. Other options include a rear seat entertainment system with a pair of 10-inch screens, and of course a TV tuner.

If you really want to push the boat out on the audio front, try the Burmester high-end 3D Surround Sound System which has 24 speakers, a 24 channel amplifier and a total output of 1,540 watts.