
Audi S4
2006 to 2008 · Sedan
A 2006 Audi S4 cost $54,900 new. Over the past 12 months, 9 have sold publicly at a median of $14,000. The Shifty Estimate for a well-kept example is $15,400. Across the sales we have on file, prices ran from $5,150 to $77,000, depending on mileage, color, and history.
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- Median · 12 mo
- $14,000
- Sales · 12 mo
- 9
- Original MSRP
- $54,900Down 72% since new
The market
Community
Latest results


Sold $14,000

Sold $77,000

Sold $17,250

Sold $8,200

Sold $18,500
Specifications
- Engine
- V8, 4.2L
- Power
- 340 hp
- Torque
- 302 lb-ft
- 0 to 60
- 5.1 s
- Top speed
- 155 mph
- Transmission
- Manual
- Drivetrain
- AWD
- Original MSRP
- $54,900
Common questions
How much does a Audi S4 cost?
A 2006 Audi S4 cost $54,900 new. Over the past 12 months, 9 have sold publicly at a median of $14,000. The Shifty Estimate for a well-kept example is $15,400. Across the sales we have on file, prices ran from $5,150 to $77,000, depending on mileage, color, and history.
What is a 2006 Audi S4 worth today?
The Shifty Estimate is $15,400, up 35.0% over the past 12 months. Confidence is high: 9 public sales in a year gives a firm read.
Is a Audi S4 a good investment?
It has depreciated 72% against its $54,900 list price. Values are up 35.0% over the past 12 months. The caution is spread, not direction: across the sales we have on file, prices ran from $5,150 to $77,000, and mileage explains most of that.
How many Audi S4 have sold?
Shifty has 88 public sales of the Audi S4 on file. The earliest was on Jan 12, 2018.
What has a Audi S4 sold for at auction?
The 3 most recent public sales we have on file:
- $13,000Oct 19, 2026Phantom Black Pearl Effect · 125,000 mi
- $26,000Sep 19, 2026Deep Sea Blue Pearl Effect · 118,000 mi
- $14,000Sep 12, 2026Brilliant Black (LY9B) · 47,000 mi
About the 2006 Audi S4
The B7-generation S4 represents Audi's last naturally aspirated V8 S4, making it increasingly coveted among enthusiasts who prize linear power delivery over turbo lag. Its 4.2-liter V8 produces 344 horsepower and that intoxicating high-rpm wail that disappeared when Audi switched to supercharged V6s. Built on the same platform as the RS4, it shares much of the suspension DNA while offering more daily usability. The Avant wagon variant is particularly sought-after, combining 155mph capability with genuine practicality. These cars have aged gracefully, with their understated flared fenders and subtle aggression looking more purposeful than flashy modern performance sedans. Carbon build-up on intake valves remains the primary concern, but well-maintained examples are appreciating as collectors recognize this as the end of an era for Audi's naturally aspirated performance cars.
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