Not sure about those roofs, must be an optional thing instead of the fabric roof but those wheel flares are standard for that series. Might just be the photo angle that makes them look more pronounced.
Yeah they are a great little car to drive. My father has this same NC model and I considered getting one before I got my SS so I got to drive several of them during my decision making process. The NC series is definitely more refined than the earlier ones but I think the earlier models NA and NB in particular are more fun to drive.