To be honest the new A7 looks a little bit more like the Stinger But I think, the KIA is the perfect combination between the A5 sportback and the A7. If you just look from the side.
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If we talk about the rear I think the tail lights are stolen from a charger
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Overall I think KIA did a great Job creating the car, and they got help from the the best car companys in Germany (Ex Designer form Audi [Yes he works for KIA now, but still] ; Chassis engeneering by BMW M ; and probably more that I don't name right now)