Joining the Q8 next year will be the e-tron electric crossover, before the Q4 compact crossover arrives in 2019. Audi said the Q4 ... with BMW offering five models and Mercedes-Benz currently ...

The Audi S4 is the automaker's original compact sports sedan, priced above the Audi S3 sedan and below the Audi S6, S7, and S8 sedans in the automaker's S series of sporty four-door models.