Porsche Cajun prototype caught wearing Audi duds in Sweden

'Tis the season, or so they say. But we're not talking about the holidays. We're talking about the season for cold-weather testing of new prototypes up in northern Sweden. After our intrepid shutter-bugs snapped an updated Mercedes-Benz GLK taking its licks in the snow way up there near the arctic circle, now they've caught this Audi Q5 test mule.

Only appearances can be deceiving. Because while this may look like a Q5 – or even a high-performance Q5-RS – what we're actually looking at is a prototype for the upcoming Porsche Cajun.

The highly anticipated baby brother to the Cayenne will benefit from the synergies of belonging to the Volkswagen Group, hence the Q5 platform and – until we see otherwise – the Q5's sheetmetal. The major difference is in the wheel wells: bigger alloys, bigger brakes, and a wider track than the existing Audi.

The running gear (read: powertrain) is expected to be fine-tuned by Porsche engineers for a sportier attitude. We're expecting hybrid and even three-door versions (the latter to target the Range Rover Evoque), but for now we'll just have to gaze upon a wolf in sheep's clothing. Check it out in the high-res image gallery from the frozen tundra – you won't even have to put on your parka.