History is very likely to record the 2014 Geneva motor show 2014 as the moment that Volkswagen Group took the significant step to overhaul the interiors of its bread-and-butter models with touchscreen-based technology.

This seismic step is important because VW’s current dominant position in the European car industry can be traced back to the late-1990s Golf Mk5 and the decision to invest in premium quality interior design to open a quality lead over rivals.

It was a gamble counted at the time in hundreds of millions of dollars of R&D, investment and production tooling that paid off by lifting VW’s models to a position where its models commanded a sales premium.

The opposition scrambled to catch-up, many failing to close the gap on quality, with a resultant loss of profitability. It really was that important to the business bottom line.

Ever since, VW has led the field in the art of assembling interiors from beautifully weighted switches and elegantly designed analogue instruments arranged logically in a design hierarchy driven by the desire to add value and brand lustre in the congested mid-market.

Forget all that for the future, because the VW T-Roc concept at Geneva has an interior built around three digital screens – a 12.3-inch instrument cluster, an eight-inch satnav screen atop the dash and a six-inch lower screen for secondary functions.

This, no less, is an interior design revolution for VW and will be embraced for production "in the next two to three years", according to VW design chief Klaus Bischoff.

"We have to do this because people are becoming so used to it. And younger car buyers are growing up with touchscreens. The interior with lots of knobs and switches can’t go on," he added.

VW is still mulling over how to launch touchscreen interiors. One option is to use a niche model, like the production T-Roc, which is expected in the next 24 months, or a premium model, like the Phaeton replacement, both of which can bear the higher component cost.

Then the technology has to cascade down the range, and as production volumes build, the cost will fall to a point when the Up-family can be equipped with touchscreens.

"If you remember the first Up concept, it had touchscreens, but they were too expensive back then," said Bischoff.

When the technology is available, it will then spread to Audi, Seat and Skoda, and the cost will come down further.

It was surely no coincidence that the Giugiaro Clipper concept featured a full-width digital dash.

Cost, of course, is why VW is not leading in this development — Range Rover was first with the digital instrument cluster, a luxury car feature now raised to new heights by the twin-screen Mercedes-Benz S-class.

However, in the mid-market Peugeot has worked out the cost/production equation in the new, Car of the Year-winning 308, and the cheaper 208, while Ford has just revamped the Focus with a touchscreen-oriented fascia, overhauling its best-seller after just three years on sale, while the Renault Mégane replacement in 2015/16 is expected to follow suit.

Of course, we can expect VW to bring its design expertise to play with an expertly thought-out, logical interface.

But with touchscreen technology as it stands today, we can wave goodbye to that satisfying, tactile feeling of a beautifully, engineered-by-Germans phalanx of switches.

The dawn of a new age in interior design and functionality is truly dawning.