I REALLY like the way my 9-5 sedan looks, but I think the right spoiler would make the rear end look better.

After looking at various options, I'm seeing few spoilers that I like. I saw pics of a Viggen wing/spoiler on what looks to be a 9-5 hatchback and LOVE the way it looks. Would a Viggen by chance, fit on the rear of a sedan (with a trunk instead of a hatch)?