The Audi S7 fits between the base Audi A7 and high-performance Audi RS 7 in the four-door fastback's lineup. The S7 is priced below the full-size Audi S8 sedan and above the S3, S4, and S6 sedans.
The Audi S8 Plus is the epitome of Audi full-size performance and slots above the S7, S6, S4, and S3 four doors in the automaker's S series of sporty cars. Competitors include the BMW Alpina B7 ...