Question 1

Is the B5 S4 the best?

Accepted Answer

Among enthusiasts, often yes. The B5 S4 (1997-2001) with 2.7L twin-turbo V6 has cult following due to engine character and tuner potential. The 2.7T responds well to modifications. Pricing for clean B5 S4s has appreciated as future-classic status emerges.

Question 2

How much does an S4 cost?

Accepted Answer

Used pricing varies dramatically. B5 S4: $5,000-$30,000+. B6/B7 S4: $5,000-$15,000. B8 S4: $15,000-$30,000. B9 S4: $30,000-$50,000+. Clean B5 examples are at the higher end of B5 range.

Question 3

Are S4s reliable?

Accepted Answer

Mixed depending on generation. B5 with 2.7T has known timing belt and various concerns. B6/B7 V8 has timing chain issues. B8 supercharged V6 has been reliable. B9 has been generally reliable. Maintenance is expensive due to specialty parts.

Question 4

How is S4 different from RS4?

Accepted Answer

RS4 is the higher performance variant. S4 is the mid-tier sport variant; RS4 has more power (450 horsepower in current B9), more aggressive chassis tuning, and aggressive styling. Both are Audi performance sedans; RS4 is the focused track-capable variant.

Question 5

Why was the B5 S4 special?

Accepted Answer

The 2.7L twin-turbo V6 was a unique engine in compact sport sedan format. Combined with quattro AWD, manual transmission, and balanced chassis, the B5 S4 was widely considered one of the great affordable performance sedans of the late 1990s and early 2000s. The engine has been highly modifiable.

Audi S4

S4 generations

Frequently asked questions about Audi S4