During the production of the "Type 53", there were subtle changes to the body and trim. On cars produced after the summer break in August 1975 (for the 1976 model year), the conventional two wiper system changed to a single wiper which parks on the passenger side of the windscreen, while the driver also benefited from improved, lighter, steering linkage. In August 1977 (for model year 1978) the separate front side marker and turn signal, changed to a combination wrap-around orange lens. At the same time, behind the doors the B-pillar colour changed from body colour to black, which was thought to give the car a more pleasing profile. Other mid-life changes include the move from chrome bumpers with rubberised end caps to a plastic-coated one-piece wrap around bumper. In 1979, the one-piece "flag" style outside mirrors transitioned to a two-piece shrouded mirror. There were also special variants throughout the Type 1 production. Most distinguishable by paint schemes and trim, there were special versions called "Sidewinder", "Sidewinder II", "Champagne Edition", "Champagne Edition II" and the "S". The Champagne Edition II only came in white with black accents and a Zender front spoiler. On the NA models the 1980 "S" versions came in only three colours, Alpine White, Black and Mars Red with unique colour accents. This "S" model differed from the base model by having blacked out chrome trim, day glow additions to the exterior trim, Recaro designed sports seats, white letter tires, sport strips and a standard five-speed transmission. This was followed by the 1981 "S" versions which only came in Cosmos Silver Metallic, Cirrus Gray Metallic and Mars Red without the colour accents. Steel sunroofs were an available option on both the "S" non-"S" vehicles. Unlike the sunroofs on the second-generation Sciroccos introduced in 1982, these earlier versions only tilted open. They did not slide back but could be removed and stored in a special fabric folder and placed in the trunk hatch. Not forgetting the addition of the "Storm" models, available in two colours with a run of 250 cars in each colour.