What I have presented is also the real cost per 10 km of owning the car the first 60,000 kms. It includes depreciation, insurance, fuel, service and such. Hence, the comparison made by Teknikens Värld also shows (in SEK) what car is most expensive of the three to own on the Swedish market.
So, no, I did not miss the point of your post, but UK prices for cars, insurance, service, fuel and market specific depreciation is not relevant other than in the UK.
This is the result, converted to the same format you used to present your figures:
(first figure = price in SEK, second figure = real cost of owning in SEK)
Alfa: 449,900 : 380,040
Audi: 394,900 : 312,360
BMW: 421,000 : 305,640
Edit: the calculation was based on 60,000 km (6,000 Swedish Mil) and 3 years ownership.