An opera window is a small fixed window usually behind the rear side window of an automobile, originating with small windows mounted in the fabric of a folding top on horse-drawn carriages. They are typically mounted in an automobile's C-pillar, usually within a padded, vinylled section of the roof as a reference to the original location in a fabric roof. The design feature was popular, mainly with domestic U.S. manufacturers but also seen in Japan, during the 1970s and early 1980s..
The origin was from "opera" vehicles of around 1915 with occasional collapsible seating for extra passengers. The opera window was also a feature on "formal roof" and limousine models with higher than a normal roof to accommodate passengers with top hats.
History
1956–1957 Ford Thunderbird "porthole" opera window in removable hardtop
1977 AMC Matador Barcelona coupe fixed opera window surrounded by padded Landau roof
1973 Dodge Charger SE coupe fixed opera window behind the side door glass
The design element of a distinct, fixed, centered opera window was borrowed from such windows in horse-drawn carriages and used during the classical era of automobile styling. For example, "the Elcar in 1924 was good looking... and even a fabric top in the style of a brougham with oval opera windows framed by landau bars". Opera windows saw their demise in the 1930s.
Perhaps the most notable return was the "porthole" in the 1956–1957 Ford Thunderbird. It was provided as an option to improve rear-quarter visibility with the removable hardtop in place. "The hottest thing going was the 'porthole' window in the rear side pillar – called 'opera windows' – that came in during the horse and buggy [era]".
Opera windows began reappearing in the early 1970s in such vehicles as the 1972 Continental Mark IV. Almost all personal luxury cars would adopt opera windows, usually framed by a vinyl roof. Most often, opera window variants were applied on two-door hardtop or coupé models, spanning all types of vehicles from economy compacts to flagshippersonal luxury cars, in which latter exploding realm they became "recognition elements" seeking to add a vintage element to their styling. General Motors introduced an all-new line of mid-sized "Colonade" models for the 1973 model year. Standard on all the coupes was a fixed triangular rear quarter window while higher trim versions used a rectangular vertical opera window.
In some cars, an additional feature was the so-called opera light that was mounted on the outside of the B-pillar or C-pillar and illuminated when the exterior lights were switched on.
Function
The windows also helped offset the significant blind spots created by wide C-pillars that were characteristic of many American cars produced at this time. In an age of decreasing dimensions and increasingly common use of non-opening rear side windows on two-door models, a variety of shapes of rear windows may have helped passengers there to feel somewhat less claustrophobic.[citation needed]
These windows were usually non-functional; however, in the case of the AMC Matador coupe NASCAR racers, the standard roll-down quarter windows were causing aerodynamic drag. Penske racing requested AMC a small "porthole" to smooth the airflow when open to the wind under racing conditions. To qualify as a stock item for use on the tracks, NASCAR required 500 units must be available to the public. The small opera window was first an optional "D/L Formal Window Package" on the Brougham models and then a standard feature on the Barcelona II trim package.
↑Locke, William S. (2000). Elcar and Pratt automobiles: the complete history. McFarland. p.71. ISBN978-0-7864-0956-3.
↑Szudarek, Robert (2000). The first century of the Detroit Auto Show. Warrendale, Pennsylvania: Society of Automotive Engineers. p.210. ISBN978-0-7680-0502-8.
↑Stern, Milton (April 2018). "The Peak of Personal Luxury". Hemmings Classic Car. Archived from the original on 7 November 2021. Retrieved 26 November 2022.
↑Herd, Paul; Mueller, Paul (1994). Charger, Road Runner & Super Bee. Motorbooks International. p.119. ISBN978-0-87938-844-7.
↑Sikora II, Don (10 April 2013). "Review Flashback! 1975 AMC Matador". The Daily Drive by Consumer Guide. Archived from the original on 27 November 2022. Retrieved 26 November 2022.
↑"1974-1978 AMC Matador". Automobile Brand's Of The Past.. 20 May 2009. Archived from the original on 27 November 2022. Retrieved 26 November 2022.
↑'74 Ford Torino(PDF) (brochure), Ford Motor Company, 1973, pp.4, 8, archived from the original(PDF) on 9 July 2025 – via xr793.org
↑Hartford, Bill (October 1977). "Driving the 1978 Fords, Lincolns and Mercurys". Popular Mechanics. Vol.148, no.4. p.110. Retrieved 26 November 2022– via Google Books. Two-doors get a gimmicky 'Twin-dow', a split opera window.
↑ カリーナバン 1400ー1600 [Carina Van 1400–1600] (in Japanese), Toyota, December 1975, p.4, 135741—5012
↑"History of the Toyota Crown". Toyota UK. 6 August 2015. Archived from the original on 1 November 2020. Retrieved 3 September 2020. opera windows were added to the thick C-pillars to enhance rear visibility and give the model a distinctive design feature