Starting in 1977, Chevrolet offered a Spyder standard as an available option for all Sport hatchbacks. This was the D80 Spoiler package which included a body-colour front air dam and rear spoiler. This option was available from '77 right through till the end of Monza production in 1980. From 1977 to '79, the front air dam was a 2 piece assembly than ran the width of the car and was integrated into the existing air deflector under the front facia. For 1980 the air dam still consisted of 2 pieces that were integrated into the same air deflector but they now continued up the side of the fender blending into the wheel well. The rear spoiler remained the same every year and was a 3-piece unit that bolted to the quarters and hatchback. Unfortunately this option was not available on any other Monza model.
Front Air Dam
Chevrolet Monza D80
1977 - 1,341
1978 - 2,141
1979 - 4,091
1980 - 2,277
Total - 9,850
Buick also offered a body-colour front air dam (identical to the '77-'79 Monza style) but only as part of the larger 1979-'80 Designer's Accent Edition Skyhawk and not available as an extra charge option.
Oldsmobile offered the front air dam and a rear spoiler but they were also only available as part of a larger option package, the Firenza. The Firenza rear spoiler was identical to the Monza model and the front air dam was similar to the early monza style but it was extended to 'flow' into the wheel well opening flares.
Front Air Dam
Pontiac also offered the D80 but only the rear spoiler was available, not a front air dam (which was only part of the Formula option). This rear spoiler was also a 3-piece item but the ends were very different as was the center section, to account for the slightly different angle of the hatchback in relation to the rear facia. Unlike the Monza, Sunbird had a rear spoiler offered for both hatchback and coupe models and they were unique those specific models.