The 2023 Audi A4 has been caught undergoing winter testing ahead of its unveiling later this year.

Audi has previously announced it will debut its last internal-combustion engine car in 2025 (excluding the Chinese market), meaning this all-new B10 A4 will be the last model to be powered by petrol and diesel.

Despite the camouflage wrap, the upcoming A4 appears to feature a smaller grille than the outgoing vehicle, with sharper, more aggressive LED headlights located within the front facia, while the Avant’s wagon body gets a more rakish angle at the rear – echoing the sleek look of the Mercedes-Benz CLA Shooting Brake.

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In a departure from modern automotive design, the new car looks to have a flat bonnet panel, rather than hiding the shut lines where shapes and angles meet as is typical.

At the rear, the quarter panels above the wheel arches are quite wide compared to the glasshouse, with the petrol flap almost pointing skyward.

Audi’s engineers have wired in some trailer tail-lights to help disguise the final look, but it’s possible we could see an LED lamp running the full width of the tailgate, as with other recent models from the German carmaker.

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While both petrol and diesel engines are expected, based on MLB chassis architecture shared across the Volkswagen Group, the battery-powered A4 E-Tron is said to be underpinned by the all-electric PPE platform, with the Tesla Model 3 firmly in Audi’s sights.

Two different Audi RS4 versions are also rumoured: the first will use the current car’s 2.9-litre twin-turbo V6 mated with plug-in hybrid technology, while an RS4 E-Tron will use dual electric motors.

The 2023 Audi A4 will likely be unveiled in late 2022 ahead of a European launch the following year.

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