[18] All Cascada variants were developed during the period when General Motors had filed for Chapter 11 Bankruptcy and its restructuring commenced.

As the Cascada neared the end of its production, Opel was sold to Groupe PSA (2017),[19] and the convertible segment experienced a sharp decline globally.

Cascada specifications, trim and equipment levels vary slightly between the Opel, Buick, Vauxhall and Holden badge engineered variants, with shared standard equipment including electric park brake, sport seats, French stitching on the instrument panel, DAB Radio, auto headlights and wipers, cruise control and 7.0" Intellilink Infotainment System.

[24] A system marketed as Easy Entry is activated by manually releasing the front seat back and tilting it forward.

[28] Opel claimed the body of the Cascada was 43% stiffer than the previous generation Astra H TwinTop, and worked in tandem with the HiPer Strut suspension layout.

[30][31] After first manually deploying a trunk-mounted cargo-divider, the soft top can be electro-hydraulically raised or lowered at speeds up to 50kmh/31mph by a control located between the two front seats.

[24] Offered in black, tan, brown and burgundy (marketed respectively as Ebony, Sahara, Sweet Mocha and Malbec), availability varies by model year and trim level.

[24] The Cascada uses suspension systems similar to its Delta II platform siblings, the Cadillac ELR and Opel Astra GTC.

Front suspension, marketed as HiPer Strut, reduces the kingpin inclination angle and shortens the kingpin offset compared to a MacPherson strut design — helping to prevent torque steer; increase front axle grip during cornering and optimize tire contact with the road.

The design reduces unwanted steering system disturbances over bumps and on rough roads and allows the Cascada to employ 20" tires.

The torsion beam itself is a U-shaped, doubled-walled profile attached to trailing links via a ’magnetic-arc’ welding process — which uses magnetic forces to drive the components together for welding while allowing the beam’s thickness and attachment angles to be varied according to different engine and vehicle weights.

The wattslink is carried on a small cross-member attached to the underside of the car, just behind the rear wheel center line.

The Cascada in all its variants primarily used the turbocharged 1.6 litre four cylinder Medium Gasoline Engine with Spark Ignition Direct Injection technology, which reduces fuel consumption.

The only available engine in the Buick Cascada was the 200 PS (147 kW; 197 hp) turbocharged 1.6 litre four cylinder with Spark Ignition Direct Injection technology and variable valve timing.