← Audi S4 · 2018-present · B9

Audi S4 (B9)

Underrated daily-driver. M340i fights but loses on AWD.

Verdict
A
BHP
354 bhp
0–60
4.4 s
Top speed
155 mph
MPG
23 mpg
New
$54,000-$62,000

Strengths

  • Quattro + 354bhp V6 is genuinely quick year-round
  • Sport diff is well-tuned
  • Cabin is segment-leading

Weaknesses

  • No manual ever in B9 (B5/B6/B7/B8 all had manuals)
  • Steering numbness
  • Boot is small for the class

Notable tech

  • MLB Evo platform
  • 48V mild-hybrid (post-2020 mid-cycle)
  • 8-speed Tiptronic
  • Quattro standard
  • Sport rear differential
  • Adaptive damping optional

Common issues

  • EA839 V6 oil consumption
  • 48V isolation faults
  • Tiptronic shift quality complaints early B9

Used-market budget

$32,000

Typical price point for a well-maintained example with full service history. Cars priced significantly below this often require remedial work.