Some masses like certain cars because of more or less very specific qualities . For just about , its the plan . For others , the engine specifications are most of import . Fans of the Audi S7 will be proud of to find come out that the2018 Audi S7and theRS 7are built to fulfil those needs . These cool cars are something of a rarity inch the self-propelling market place , group A pair of high-performance five-door hatchbacks with room for five passengers . Both model are based on the Audi A7 . nonetheless , the 2018 Audi S7 differs from the A7 in that information technology has a 4.0-litre twin-turbo V-8 engine , rated at 450 H.P. and 406 pound-feet of torque . The RS 7 is rated even high , atomic number 85 560 hp and 518 pound-feet of torque in standard tune . The roentgen 7 Performance model put up get up to 605 hp and 553 pound-feet of torque . In spite of these , both vehicles proceed powerfulness to all four corner through Associate in Nursing 8-speed automatic gear box . thither are also the hanging choice , which are firm but not unmanageable . inwards terminus of the interior , both the S7 and the RS 7 resemble the received A7 . withal , they differ inwards some trim finish , and also the design of the upholstery . The most defining device characteristic of the 2018 Audi S7 and the RS7 , and what sets them asunder from vehicles like the Audi S6 , the BMW M550i , the M5 , the Mercedes-AMG E43 and the E63 live the hatchback door configuration . ampere sloping roofline signify that both vehicles be a bit cramped for outer space in the back seats . Thus , they are not as roomy as single would expect from a station wagon . However , these cool down cars proffer more than substitute and a ALIR to a greater extent attractive shape than group A habitue sedan . The 2018 Audi S7 comes in Premium and Prestige trim levels , while the RS7 is available in measure or Performance trim levels . Theres more than enough optional equipment to customize both cool down gondola to your gustatory modality , only from the get-go , both are well-equipped .