Diesel's low-rev response, some fussy facelift styling details Understated almost to the point of anonymity, the S4 is the mid-level performance version of the Audi A4 saloon that’s seen more heart ...

Based on the latest Audi A4, chassis code B9, the S4 is the hot, but not quite RS-hot model to take on the Jaguar XE-S, BMW 340i, and Mercedes-AMG C43. Like the previous generation, the S4 packs a ...

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The internet is positively packed with information about the upcoming Audi A4 model, codenamed B9, so much so that it's extremely hard to paint a clear picture. Even though a number of sources ...