The model should appeal to fans looking for a stylish and practical hatchback.

The 2017 Audi S5 Sportback has caught on video.

Filmed undergoing testing near the Nürburgring, the S5 Sportback has an evolutionary design that should appease fans looking for a stylish and practical hatchback.  Audi has done a pretty good job at disguising the model but we can see it will have a new front fascia with a larger grille that is flanked by angular headlights.  The sporty styling continues further back as there's a rakish windscreen, curvaceous bodywork, and a gently sloping roof.  The prototype has also been equipped with a sport-tuned suspension, lightweight alloy wheels, and a four-tailpipe sports exhaust system.

Interior changes will be fairly limited but drivers can expect to find a number of unique touches including Nappa leather / Alcantara sport seats, illuminated door plates, and brushed aluminum trim with a matte finish.

Audi has been relatively tight-lipped about the model but it will be powered by a 3.0-liter V6 TFSI engine with 354 horsepower and 369 pound-feet of torque.  The engine will be connected to an eight-speed tiptronic transmission and a rear-biased qauttro all-wheel-drive system which should enable the S5 Sportback to accelerate from 0-62 miles per hour in approximately 4.8 seconds before hitting a limited top speed of 155 mph.

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