<P> The vehicle was unveiled in 2011 Frankfurt Auto Show, and later in 2012 Audi quattro Cup . </P> <P> Delivery of the S7 began in spring 2012 . </P> <P> Reviewers have cited the Mercedes - Benz CLS - Class as the inspiration to the Audi A7 in the four - door executive coupé market . </P> <P> The following internal combustion engines are available, with variations dependent on market . </P>

What year did the audi rs7 come out