Masao wrote:The interior shots are in the Spinner cockpit set and the exteriors are of Deckard's car.
just guessing: many scenes on BR were just been put up by what they were going to look like, not following realisms of places/rooms displacement or cars designs or whatever. just take Deckard's apartment: you won't be able to draw its plan, just because they were constantly changing the walls and furnishing placement, scene by scene, just depending on how they wanted the scene to look like, you know, the light spots, the shape of the place, the shot angle etc.
and so the Spinner-looking Deckard's car interiors in the Deckard-calls-Sebastian scene. they probably needed the car's side window to look more tapered or whatever that shape, and the Spinner's side window just happened to look as they wanted. i think they wouldn't ever imagined how picky and geeky we fans would have been 25 years after. they probably thought they wouldn't even have fans at all