Opel’s next generation Astra Sports Tourer has returned in a fresh set of spy shots ahead of a September reveal at home in Germany during 2015 IAA.

The current trend in the automotive industry is to make bigger and bigger cars with each passing generation, but Opel decided to shorten the Astra K hatchback by 5 cm compared to its predecessor. In addition, the wheelbase was cut by 2 cm, but without sacrificing interior cabin space. On the contrary, there's more legroom for rear passengers while the trunk's size has remained the same at 370 liters with the rear seats up. Once you fold them down, the capacity jumps to 1,210 liters which represents a minor 25-liter decrease compared to the old model.

For Astra fans who want a more practical version, this is the one to get as the Astra Sports Tourer will have a substantially more spacious trunk than the hatch and it should be just as big as its predecessor (500 / 1,550 liters). Like the hatchback, the wagon will lose between 120 kg (264 lbs) to 200 kg (441 lbs) so it will be a better car in just about every way, especially since it will be optionally available with those fancy first-in-class IntelliLux LED matrix headlights.

The engine lineup will obviously be borrowed from its five-door hatch brother, so there's going to be a small 3-cylinder 1.0-liter turbo with 105 PS (77 kW), an all-new 1.4-liter turbo with 125 PS (92 kW) and 150 PS (110 kW) along with a more economical 1.6 CDTI "whisper diesel" rated at 95 PS (70 kW) and 136 PS (100 kW).

It will be a tad more expensive than the five-door hatch which in Germany begins at €17,960 in Germany. We'll know more in the coming weeks as Opel will likely show us the car soon before bringing it to IAA in mid-September, with sales to kick off before the year's end.

Gallery: Next generation Opel Astra Sports Tourer spied hiding its more practical rear end

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