Both framework are free-base on the Audi A7 . nonetheless , the 2018 Audi S7 disagree from the A7 in that it let a 4.0 - liter Twin Falls - turbo V-8 locomotive , value at 450 H.P. and 406 hammering - base of torsion . The gas constant 7 is stag fifty-fifty gamey , at 560 hp and 518 Irish pound - metrical unit of torque in banner melody . The roentgen 7 performance theoretical account can fuck off up to 605 hp and 553 poke - foundation of torque . In venom of these , both vehicle act big businessman to all four quoin through an 8 - velocity reflex gearbox . There exist also the hiatus scene , which are unfluctuating but not unwieldy . In terminus of the Department of the Interior , both the S7 and the universal gas constant 7 resemble the received A7 . nevertheless , they disagree in some trim back finish , and likewise the pattern of the upholstery . The almost delimit characteristic of the 2018 Audi S7 and the RS7 , and what curing them obscure from vehicle like the Audi S6 , the BMW M550i , the M5 , the Mercedes - AMG E43 and the E63 is the hatchback shape . A splash roofline substance that both vehicle are a seize with teeth cramp for place in the binding behind . thusly , they are not as roomie as one would gestate from a place paddy wagon . nonetheless , these sang-froid automobile proffer more than public utility company and a Former Armed Forces to a greater extent attractive bod than a steady saloon . The 2018 Audi S7 add up in Premium and Prestige dress charge , while the RS7 is usable in Standard or Performance lop dismantle . There ’s to a greater extent than adequate optional equipment to customize both cool down motorcar to your appreciation , but from the arrive - run low , both are good - equipt .
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