BMW devotees will be well used to the extra-glitzy materials and the technological glare of the firm’s current interior design philosophy.

The days when the ambient quality and luxury of Munich’s cabin treatments were deliberately understated are long gone. Some time ago, the firm decided it needed to take on both Audi and Mercedes in that respect, and it conjured driving environments of readily apparent richness and lavishness. Pretty soon after that, the G20 3 Series got an interior full of boldly hexagonal chrome and high-tech, widescreen wizardry – and that’s a treatment the 4 Series now inherits.

Like regular series BMWs, the M440i retains these physical drive mode buttons. New ‘Adaptive’ adjusts chassis and powertrain to suit your driving style

It’s an interior in which it’s very easy to make yourself comfortable over long distances. It feels expensively hewn and appointed and is broadly easy to interact with and to configure to your liking. The driving position is only marginally lower and more snug than that of a 3 Series. You wouldn’t call it sports car low, but then, with ease of access and long-range visibility in mind, neither should it be. The control layout is excellent, with very generous adjustment of the steering column possible. Slightly wide A-pillars impinge on forward visibility to an extent, but only as is broadly common among modern cars.

Instrumentation is all digital, with the rev counter and speedometer displayed around the lateral extremes of an octagonal binnacle screen. The display themes change with the selected driving mode, but few are as easily readable as they ought to be and none of them provides a simple pairing of circular dials that could be read so easily at a glance. In cars with BMW’s optional head-up display, of course, you can never claim to be ill-informed of your road or engine speed, but on behalf of those who like to pare down and simplify what the car is telling you in order to make longer trips less tiring, BMW could still do better.

The 4 Series’ rear seats are predictably tricky things in which to berth. You’ll need to be under 6ft tall to find enough head room, although leg room is a little less meanly provided. Overall, though, the 4 Series’ back-seat accommodation is reasonable enough for occasional use. The ability to fold the rear seatbacks 40/20/40 is a welcome boost to carrying flexibility, meanwhile, and boot space is good.

BMW 4 Series infotainment and sat-nav

BMW’s decision to bring the 4 Series to the UK at baseline M Sport equipment level means all cars come with the full-sized digital instrument and infotainment set-ups.

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They also all feature the firm’s Connected Package Professional, which, among other things, delivers wired smartphone mirroring for both Apple and Android systems. Wireless mirroring for Apple handsets comes with the ‘enhanced Bluetooth’ option that adds wireless device charging. It’s £350 on its own, or included as part of the Technology Pack.

The firm’s latest ‘Operating System 7.0’ software is very good. It appeals not only because it looks great and responds quickly but also because you can control it so flexibly – via the familiar rotary input device, or through the touchscreen or by voice control. The modularity of layout of the car’s home screen is also great, as is the column of menu shortcuts, which makes the system more easily navigable.

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