Interior. A bit simple, since it will hardly be visible at all with the tinted glass, so only flat paint on the carpet for example. I am disappointed by the satin black I painted on the seats and door cards though, it dried high gloss and I still stirred the paint, but again, tinted glass so I let it be.
Not that they will be very visible either, but painted panels on the dashboard was also a hot thing back then.
Dual exhausts, after swapping the stock muffler for a very suitable Golf VR6 unit.