Alfa Romeo is putting the finishing touches on the next-generation Stelvio, having started to phase out the current-generation SUV and its saloon sibling, the Giulia.

Images of a Stelvio prototype testing in northern Sweden reveal that it's a significantly longer car than the current one and appears to have a more rakish roofline.

Up front, it takes clear inspiration from the smaller Alfa Romeo Junior but gets a different look that splits the headlights and daytime running units into two sections, with the latter set just below the lip of the bonnet.

At the rear is a set of arrow-shaped brake lights that, as previously revealed in an official teaser image, outline the tailgate in a shield-like design.

There's also a duck-tail-style lip spoiler that neatly separates the car’s glasshouse from its rear fascia.

Completing the look is a new three-spoke iteration of Alfa’s historic Teledial wheel design, shod in Continental winter rubber.

The new Stelvio will be underpinned by Alfa parent company Stellantis’s new STLA Large platform and will offer the choice of hybrid and electric powertrains.

The platform can support battery packs with capacities of up to 118kWh – claimed to yield ranges of up to 500 miles – as well as “extreme” powertrains with more shove than the Dodge Challenger Hellcat’s supercharged V8.

For reference, the first STLA Large-based car, the Dodge Charger Daytona, gets a 93.9kWh nickel-cobalt-aluminum battery that allows it to drive up to 308 miles between charges.

The range-topping Scat Pack model also gets dual motors with silicon-carbide inverters that combine to put out 670bhp, allowing it to do the 0-60mph sprint in 3.3sec.

However, former Alfa Romeo boss Jean-Philippe Imparato previously said the hot Quadrifoglio version of the new Stelvio-twinned Giulia would pack “around 1000hp”.

It’s likely that Alfa will also offer a petrol-powered Quadrifoglio, retaining the current car’s 2.9-litre twin-turbo V6.

Imprato confirmed in 2023 that the 513bhp lump would survive the incoming Euro 7 emissions rules, stating: “I would like something [compliant with] the [new] regulation to be interesting.”

The news comes as Alfa begins to taper off sales of the existing Giulia and Stelvio. In a statement supplied to Autocar, it confirmed that Quadrifoglio order books will close at the end of March, while the 2.0-litre petrol versions of either car will come off sale at the end of May.

The Giulia will remain available in Europe in diesel form therafter but, as it is no longer sold with this engine in the UK, it will mark the end of the car's life here.

The diesel Stelvio will remain on sale in the UK until the new model arrives.

The new Stelvio and Giulia will be instrumental in Alfa's success going forward. Its sales have declined significantly in the UK in recent years, falling from 4997 in 2017 to around 1600 in 2020, 2021, 2022, 2023 and 2024.

It has registered 125 cars here so far this year, according to data from the Society of Motor Manufacturers and Traders.