The Cadillac Calais was the entry-level Cadillac model that was sold from 1965 to 1976. Cadillac renamed its low-priced Series 62 in 1965 as the "Calais", after the French port city of Calais that overlooks the narrowest point in the English Channel. In Greek mythology, Calais was one of two winged sons of Boreas, god of the North Wind, and Oreithyea. With the exception of no convertible model, the Calais shared the same styling and mechanics as the better-equipped, more expensive Cadillac de Ville. 1965–1970 In 1965, Calais tailfins were canted slightly downward, and sharp, distinct body lines were featured. The rear bumper was straight and the rear lamp clusters were vertical. The headlight pairs were vertical, permitting a wide grille. Side windows were curved and frameless. Perimeter frame construction allowed positioning of the engine forward in the frame, thus lowering the transmission hump and increasing interior room. The Calais was available as a 2- or 4-door hardtop as well as a "formal-roof" 4-door sedan, which was a hybrid with frameless, hardtop-like windows, but with a pillar between them. The primary differences between the Calais and the De Ville were trim levels and standard equipment. While the De Ville was delivered with such amenities as power windows and 2-way power seats as standard equipment, hand-cranked windows and manual seat adjusters were standard on the Calais, with power windows a US$119 option ($ in dollars ) in 1965. At the same time, however, AM radio was a US$165 extra, as was air conditioning (More than 90% of Cadillac buyers ordered air conditioning), at US$495 ($ in dollars ), on either. Standard equipment included power brakes; power steering; automatic transmission; cornering lights; dual back-up lights; windshield washers and dual speed wipers; full wheel covers; remote controlled outside rear view mirror; visor vanity mirror; oil filter; five tubeless blackwall tires; heater; defroster; lamps for glove and rear passenger compartments and front and rear seat belts. Unlike the De Ville, the Calais did not offer leather seating areas and vinyl roof trim was not offered initially. A high-grade cloth and vinyl, similar to what was seen on top-line Buick Electras and Oldsmobile 98s, was standard. Another item not initially available on the Calais was the Cadillac-exclusive "firemist" paint, an extra-cost high gloss metallic paint. Both the high-end Buick and Oldsmobile models shared the GM C platform with Cadillac. Cadillac, always General Motors' technology leader,