Audi's first mass-market electric crossovers, the E-Tron and E-Tron Sportback, introduced battery power to the brand by way of sleek exterior looks, solid performance, and a modern cabin. When the new Q4 E-Tron debuts next month, the sharp EV will forge a similar path, but with more features and cargo room than some of its nearest petrol-powered competitors.

On the tech side, the Q4 E-Tron adopts Audi's signature Virtual Cockpit with a standard 10.1-inch MMI touchscreen – the same as what's offered on the E-Tron – or an optional 11.6-inch touchscreen. When the Q4 E-Tron goes on sale, that will be the largest screen available in any Audi on the market. But two new features will be available on the Q4 E-Tron for the first time: a “Hey, Audi” voice assistant, and an optional augmented reality head-up display.

Audi Q4 E-Tron Prototype Interior

Audi's augmented-reality HUD will project arrows, starting and stopping points, and more, onto the windscreen. The elements of the augmented reality head-up display “project” at an average distance of 10 metres (32.8 feet) from the driver – or slightly further for things like arrows and waypoints, depending on the situation. The field of view itself measures diagonally at around 1.78 metres (70 inches), and when combined with a picture generation unit (or PGU) and an LCD screen, it makes all the information easy for the driver to read at a glance.

Another highlight of the Q4 E-Tron's interior is the clever packaging. With the modular MEB architecture underneath (shared with the Volkswagen ID.3), the Q4 stretches out to 4,600 mm (15.1-feet) long, which makes it nearly as big as a comparable petrol-powered BMW X3 at 4,755 mm (15.6 feet). But thanks to the low-mounted battery pack and long wheelbase 2,774 mm (9.1 feet), the Q4 E-Tron has as much room behind the second row as the BMW, 521 litres (18.4 cubic feet) compared to 524 litres (18.5 cubic feet). And with the second row folded flat, the Q4 has 1,490 litres (52.6 cubes) versus the BMW's 1,430 litres (50.5 cubes).

Gallery: Audi Q4 E-Tron Prototype And Interior

The Q4 E-Tron also offers solid storage space throughout the cabin, not just in the rear. Users have access to up to 25.5 litres (0.9 cubic feet) of total storage space in the glove box and centre console, with two integrated cup holders and up to four USB ports available within the latter.

As far as materials go, buyers can choose from traditional, artificial, or full Nappa leather on the S Line model, specifically. The faux leather is joined by a high-quality Dinamica trim that looks and feels like suede but consists of 45 percent recycled materials.

For now, Audi only provides us a quick glimpse of the inside of the upcoming Q4 E-Tron. We'll know all the details surrounding the EV when it officially debuts next month.