B9 (2018 to 2025)

The Audi RS4 B9 (2018–2025) represents the modern, high-tech pinnacle of the RS4 lineage, returning to its V6 roots with a 2.9L twin-turbo engine producing 331kW (450hp) and 600Nm of torque. Paired with an 8-speed ZF automatic and rear-biased Quattro system, it delivers a sharp 4.1-second 0–100km/h sprint, with later Competition Plus models sharpening the chassis and exhaust note for more driver engagement. In the current 2026 Australian market, the B9 is highly desirable as the final "pure" internal combustion RS4 before its hybrid successor arrives, making it a favorite for the buyer pool of tech-savvy families and executive commuters who require "Apple CarPlay Ultra" and modern active safety alongside track-ready performance. Market values in Australia are currently bifurcated: early 2018–2019 pre-facelift models are settling between $95,000 and $115,000 AUD, while the 2020+ facelift units with the larger touchscreens range from $125,000 to $160,000 AUD. The absolute high-water mark is the RS4 Edition 25 Years (2024), which commands upwards of $185,000 AUD due to its limited production run and increased 346kW output.

The Audi RS4 B9 (2018–2025) represents the modern, high-tech pinnacle of the RS4 lineage, returning to its V6 roots with a 2.9L twin-turbo engine producing 331kW (450hp) and 600Nm of torque. Paired with an 8-speed ZF automatic and rear-biased Quattro system, it delivers a sharp 4.1-second 0–100km/h sprint, with later Competition Plus models sharpening the chassis and exhaust note for more driver engagement. In the current 2026 Australian market, the B9 is highly desirable as the final "pure" int… Read more