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The new model is based on the GM D2UX/D2XX platform that underpins the 2016 Chevrolet Cruze and Volt plug-in hybrid. The German manufacturer tells that the lightweight vehicle architecture ensures weight savings of 120 to 200 kg (264 - 441 lbs) depending on the model and trim level.
The bodywork’s weight was reduced by 20 percent from 357 to 280 kilograms (617 lbs), which is a big accomplishment for a volume-oriented vehicle.
According to the manufacturer, the 2015 Opel Astra K is 4.37 meters long (roughly 5 cm shorter than it’s predecessor). In terms of height, the 1.46-meter K is approximately 2.6 cm lower than the Astra J. Despite the smaller body shell, inside there’s more room than ever. The wheelbase is 2 centimeters smaller, but the rear passengers enjoy an additional 35 millimeters of legroom thanks to newly designed seats and more distance between the front and rear seats.