The audi a4 is being discontinued, with some outlets suggesting it is being replaced by the a5 and s5 models. The a5 is described as an amalgam of the old a4 and a5, and is available alongside the s5. Reports also indicate that audi is discontinuing some gas-powered models, such as the s6, in favor of electric or other alternatives, but it is unclear how this affects the a4's replacement.