Opel released the official images of the future Cascada, the convertible version of the current Astra. As you already know, the model will abandon the Astra Cabrio title, and adopt a new name: Cascada.
Measuring 4.7 meter long, that’s even more than an Audi A5 Cabrio, the new Cascada will feature a soft-top, operated in just 17 seconds up to a speed of 50 km/h. Three soft top colors are available at launch. All can be coordinated with ten different body colors.
Under the hood we will find the new 1.6 liter SIDI engine. It’s the four cylinder unit that we are going to found on almost every Opel model beginning next year. It’s the star of the whole range. The unit delivers 170 hp, between 1.650 and 3.200 rpm, and 280 Nm thanks to an overboost function. This engine will be available with manual and automatic 6 speed transmissions.
The new Cascada will feature all new Opel technologies: AFL+ Adaptive Forward Lighting system with up to 11 automatic functions, the second generation Opel Eye front camera with its new, extended functionalities (enhanced Traffic Sign Recognition and Lane Departure Warning, new Following Distance Indication and Forward Collision Alert), a rear-view camera and an Advanced Park Assist that eases parking maneuvers, an ultra-sonic based Side Blind Spot Alert, ergonomic front seats, a heated steering wheel, and Hill Start Assist.

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On the new cascada the wheelbase is 71 mm longer, the front tread 56 mm and the rear tread 70 mm wider than the regular Astra. That benefits handling and stability. 
Sharing the platform with the regular Astra, the new Cascada will also feature the front suspension of his elder brother, the Insignia OPC. On the rear axle, Opel will remain dedicated to the Watt link susspension.

Source: Opel