SMALL car, very big deal. The stunning interior of the all-new A-Class is a design, says Mercedes-Benz, fit for the digital age. But the new look is also expressively elegant.

It makes Mercedes-Benz’s current cabins look instantly old-fashioned, and is certain to take the new A-Class to interior design leadership in the premium small car segment.

Production of the fourth-generation A-Class will not start until March or April of 2018, and it will likely arrive in Australia around June. But Mercedes-Benz wants to whet appetites around the world, so they staged a sneak peek at the A-Class interior for select media in Stuttgart.

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The basic bones are visually simple, but the details add opulence. “I believe this is the most beautiful air vent available,” says Hartmut Sinkwitz, indicating one of the five outlets in the A-Class’s instrument panel. “It took some time to make them possible,” adds the interior design director, who admits they’re not cheap to make. Other brands may have even more costly vents, says Sinkwitz, but none look better.

Those air vents are one of only two pieces of the interior shared with other Mercedes models. They also feature in the cabin of the updated version of that style throwback, the G-Class off-roader. And the new Mercedes-Benz A-Class’s three-spoke steering wheel is the same as that in the recently updated S-Class luxury sedan.

There’s logic in Mercedes-Benz’s decision to launch the interior look that will gradually spread through its range in the small and relatively affordable A-Class. It has a younger, more tech-receptive customer base. A study of attitudes to the new touchpad controller found younger age groups overwhelmingly liked it more than the old Comand wheel, says Sinkwitz. Older customers also preferred the pad, but only by a slender margin.

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Design isn’t the only area of improvement. Owners of the previous generation A-Class, launched in 2012, complained about the car’s tight rear seat, visibility and luggage capacity. And they were right to do so.

Mercedes-Benz’s designers and engineers have taken the criticism seriously. The new A-Class, codenamed W177, makes improvements in all these areas.

The cargo compartment is slightly larger, better shaped and easier to access. There’s floor room for six standard German drink crates, up from four in the old model, and the loading aperture is larger.

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A 10 percent improvement in visibility is claimed. Slimmer A-pillars, realigned B-pillars and pared-down C-pillars make the difference. A side benefit of the latter is a larger door that makes rear-seat access easier.

Spaciousness is also slightly improved for all A-Class occupants in most directions. There’s a little more shoulder, elbow and headroom.

Spark plug The new A-Class family will be big. There are five variants of the current W176, including A-Class hatch, CLA, CLA Shooting Brake, GLA and B-Class MPV, but the new W177 family will be eight-strong, according to compact car product manager Dirk Kielhorn. Count on an EV, something like the EQA concept shown in Frankfurt in 2017, being among them.