Audi A4 vs S4: Key Differences, Performance & Value Compared
Audi A4 is the brand’s entry-level luxury sedan; S4 is its high-performance twin, packing more power, sport suspension, and subtle styling tweaks.
Most shoppers test-drive the A4, then wonder why their neighbor’s identical-looking car launches harder at the lights—that’s the S4. Dealers rarely park them side-by-side, so badges and price feel like the only clues.
Key Differences
A4: 201-hp 2.0T, front or Quattro, 0-60 in 6.6 s, 28 mpg combined. S4: 349-hp 3.0T V6, sport diff, adaptive dampers, 0-60 in 4.3 s, 23 mpg. Brakes, seats, and grille are upgraded.
Which One Should You Choose?
Need commuter efficiency and lower lease payments? Pick A4. Want weekend canyon runs and a subtle sleeper? S4 justifies the ~$10k premium with daily-usable thrust and resale strength.
Does S4 require premium fuel?
Yes—91 octane minimum keeps the turbo V6 healthy and warranty intact.
Will A4 options push it close to S4 price?
Loaded A4 Prestige can overlap a base S4, but you still miss the engine, brakes, and sport chassis.