Hmm. Do I cut a hole in the roof?

My HVAC dash vents work just fine.

Yours might. This car doesn't have any.

scoop aside, are the martini graphics vinyl? I'm thinking about painting my spec e30, and have always loved the martini scheme.

Edit: I should've snooped before asking, here's the info from your car's page:

The Martini stripes are based on the design used on the Lancia Delta Integrale rally cars, and they’re all paint.

Yup, paint. The codes are on my site, or just ask if you can't find 'em.

After re-reading the thread I think you should do it. You could get another RHT and have one with a scoop and one de-scooped depending on your preference.