Yep, top are definitely roadster seats, in the optional alezan orange. The middle of the seat is a mesh material to improve ventilation through the seat when you are driving around with the roof down in blazing hot sun. Visually I think they look better than the solid ones in the coupe`s, although its a personal taste.
The other thing with the orange interiors, is that the early cars had the bottom half of the steering wheel in orange too, whereas the later cars didnt - it was just the gear knob, seats and handbrake surround.