Bring a Trailer prices · 2004 to 2006

What will my Audi B6 S4 (2003-2006) sell for on Bring a Trailer?

Every Audi B6 S4 (2003-2006) auction we have on record, grouped the way the listings themselves describe the car, so one version is never averaged with another.

Below is every Audi B6 S4 (2003-2006) auction we have on record from Bring a Trailer's published results, kept apart by variant. We are an official Bring a Trailer Local Partner, so this is the same record we use when a seller asks us what to expect.

26Sold since Nov 2024
96%Of auctions ended in a sale
$4,200Most recent, Oct 26, 2026
Nov 13, 2026Results read

What each one sells for

VariantMedianRangeSoldSold rateMost recent
S4 6-Speed$22,250 $7,301 to $34,0006100% $7,301, Oct 11, 2026
S4 Avant 6-Speed$17,000 $14,500 to $32,5007100% $17,000, Sep 28, 2026
S4 Cabriolet$13,250 $8,550 to $14,2503100% $8,550, Jul 23, 2025
S4 Cabriolet 6-Speed$14,000 $6,000 to $14,0003100% $14,000, Mar 12, 2026
S4 Sedan 6-Speed–too few to average $11,300 to $26,000267% $26,000, Sep 8, 2026
One-offs, modified and other–mixed group, see the list $4,200 to $16,7505100% $4,200, Oct 26, 2026

Figures are for auctions that ended since Nov 2024. Prices are winning bids; the buyer pays Bring a Trailer's fee on top. "Sold rate" is the share of auctions that met reserve. A variant with fewer than 3 sales shows no median: one or two cars are not a market.

Every sale

78 sales
$5K$10K$20K$50K202520262004 Audi S4 Sedan 6-Speed: bid to $18,250, not sold, Mar 5, 20252005 Audi B6 S4 (2003-2006), One-offs, modified and other · S4: $4,200, Oct 26, 20262004 Audi S4 6-Speed: $7,301, Oct 11, 20262005 Audi S4 Avant 6-Speed: $17,000, Sep 28, 20262004 Audi S4 Sedan 6-Speed: $26,000, Sep 8, 20262004 Audi S4 Avant 6-Speed: $14,500, Jun 23, 20262004 Audi B6 S4 (2003-2006), One-offs, modified and other · S4: $6,800, Jun 19, 20262005 Audi S4 Cabriolet 6-Speed: $14,000, Mar 12, 20262005 Audi S4 Cabriolet 6-Speed: $14,000, Jan 28, 20262004 Audi S4 Avant 6-Speed: $20,750, Dec 1, 20252004 Audi S4 Avant 6-Speed: $32,500, Nov 30, 20252005 Audi B6 S4 (2003-2006), One-offs, modified and other · S4 Avant: $16,750, Nov 12, 20252004 Audi S4 6-Speed: $10,750, Nov 10, 20252004 Audi S4 Cabriolet 6-Speed: $6,000, Oct 22, 20252004 Audi S4 Avant 6-Speed: $16,300, Oct 3, 20252005 Audi S4 Avant 6-Speed: $30,086, Aug 6, 20252005 Audi S4 Cabriolet: $8,550, Jul 23, 20252005 Audi S4 6-Speed: $21,500, Jul 20, 20252004 Audi S4 Sedan 6-Speed: $11,300, Jul 9, 20252004 Audi S4 Cabriolet, one owner: $14,250, Jun 18, 20252005 Audi S4 Avant 6-Speed: $14,750, Apr 30, 20252005 Audi S4 Cabriolet: $13,250, Apr 16, 20252004 Audi B6 S4 (2003-2006), One-offs, modified and other · S4 6-Speed Show Car, one owner: $15,000, Mar 25, 20252004 Audi B6 S4 (2003-2006), One-offs, modified and other · S4 Avant 6-Speed, modified engine: $16,555, Mar 17, 20252004 Audi S4 6-Speed: $23,400, Feb 21, 20252004 Audi S4 6-Speed: $23,000, Jan 10, 20252004 Audi S4 6-Speed: $34,000, Dec 15, 2024
SoldBid to, not soldSince Nov 2024, price on a log scale
EndedCarColorMilesPriceSource
Oct 26, 2026 2005 Audi B6 S4 (2003-2006)One-offs, modified and other · S4 Brilliant Red over Black – $4,200 BaT listing ↗
Oct 11, 2026 2004 Audi S4 6-Speed – – $7,301 BaT listing ↗
Sep 28, 2026 2005 Audi S4 Avant 6-Speed Light Silver Metallic over Silver Silk 94k mi $17,000 BaT listing ↗
Sep 8, 2026 2004 Audi S4 Sedan 6-Speed Brilliant Black over Black – $26,000 BaT listing ↗
Jun 23, 2026 2004 Audi S4 Avant 6-Speed – – $14,500 BaT listing ↗
Jun 19, 2026 2004 Audi B6 S4 (2003-2006)One-offs, modified and other · S4 Nogaro Blue Pearl Effect over Black Silk – $6,800 BaT listing ↗
Mar 12, 2026 2005 Audi S4 Cabriolet 6-Speed – 36k mi $14,000 BaT listing ↗
Jan 28, 2026 2005 Audi S4 Cabriolet 6-Speed – 36k mi $14,000 BaT listing ↗
Dec 1, 2025 2004 Audi S4 Avant 6-Speed – – $20,750 BaT listing ↗
Nov 30, 2025 2004 Audi S4 Avant 6-Speed Dolphin Gray Metallic over Black Silk – $32,500 BaT listing ↗
Nov 12, 2025 2005 Audi B6 S4 (2003-2006)One-offs, modified and other · S4 Avant – 53k mi $16,750 BaT listing ↗
Nov 10, 2025 2004 Audi S4 6-Speed Light Silver Metallic over Silver Silk – $10,750 BaT listing ↗
Oct 22, 2025 2004 Audi S4 Cabriolet 6-Speed – 94k mi $6,000 BaT listing ↗
Oct 3, 2025 2004 Audi S4 Avant 6-Speed – – $16,300 BaT listing ↗
Aug 6, 2025 2005 Audi S4 Avant 6-Speed Dolphin Gray Metallic over Silver Nappa 56k mi $30,086 BaT listing ↗
Jul 23, 2025 2005 Audi S4 Cabriolet Light Silver Metallic over Silver Silk 45k mi $8,550 BaT listing ↗
Jul 20, 2025 2005 Audi S4 6-Speed Dolphin Gray Metallic over Black 44k mi $21,500 BaT listing ↗
Jul 9, 2025 2004 Audi S4 Sedan 6-Speed Brilliant Red over Black Silk Nappa 63k mi $11,300 BaT listing ↗
Jun 18, 2025 2004 Audi S4 Cabrioletone owner – 15k mi $14,250 BaT listing ↗
Apr 30, 2025 2005 Audi S4 Avant 6-Speed Red over Ebony – $14,750 BaT listing ↗
Apr 16, 2025 2005 Audi S4 Cabriolet Brilliant Red over Black Silk Nappa 27k mi $13,250 BaT listing ↗
Mar 25, 2025 2004 Audi B6 S4 (2003-2006)One-offs, modified and other · S4 6-Speed Show Car, one owner – 38k mi $15,000 BaT listing ↗
Mar 17, 2025 2004 Audi B6 S4 (2003-2006)One-offs, modified and other · S4 Avant 6-Speed, modified engine – 136k mi $16,555 BaT listing ↗
Feb 21, 2025 2004 Audi S4 6-Speed – 22k mi $23,400 BaT listing ↗
Jan 10, 2025 2004 Audi S4 6-Speed – 22k mi $23,000 BaT listing ↗
Dec 15, 2024 2004 Audi S4 6-Speed Nogaro Blue Pearl over Black 34k mi $34,000 BaT listing ↗
Oct 14, 2024 2005 Audi S4 Cabriolet Brilliant Red over Black – $10,200 BaT listing ↗
Sep 22, 2024 2005 Audi S4 6-Speed Nogaro Blue Pearl over Black 45k mi $17,500 BaT listing ↗
Sep 14, 2024 2005 Audi S4 Avant 6-Speed Dolphin Gray Metallic over Beige – $18,750 BaT listing ↗
Jul 15, 2024 2005 Audi S4 Avant 6-Speed Arctic White over Black – $15,500 BaT listing ↗

What would yours sell for?

Pick the variant and type the mileage. We'll show the Bring a Trailer sales closest to your car and the range they sold in.

A guide from past results, not an appraisal. For a number on your car, send us the details: the valuation is free.

Bid to, not sold

These cars did not meet reserve. The high bid is not a sale price and is not counted in any price figure above. The newest 12 are shown.

EndedCarColorMilesPriceSource
Mar 5, 2025 2004 Audi S4 Sedan 6-Speed Black Silk interior 20k mi $18,250bid to, not sold BaT listing ↗
Apr 28, 2024 2004 Audi S4 Sedan 6-Speed Light Silver Metallic over Ebony 26k mi $12,500bid to, not sold BaT listing ↗
Sep 19, 2023 2004 Audi S4 Avant 6-Speed Black over Black – $13,500bid to, not sold BaT listing ↗
Mar 19, 2023 2005 Audi S4 Avant 6-Speed Silver over Black – $16,750bid to, not sold BaT listing ↗
Feb 21, 2023 2004 Audi S4 6-Speed Red over Black 18k mi $21,250bid to, not sold BaT listing ↗
Feb 20, 2022 2004 Audi S4 6-Speed Nogaro Blue Pearl over Black 14k mi $35,250bid to, not sold BaT listing ↗
Mar 2, 2021 2004 Audi S4 Avant 6-Speed Arctic White over Silk – $22,750bid to, not sold BaT listing ↗
Sep 17, 2019 2004 Audi S4 6-Speed Nogaro Blue over Black – $10,500bid to, not sold BaT listing ↗
Oct 10, 2018 2004 Audi S4 Avant 6-Speed Imola Yellow over Black – $12,104bid to, not sold BaT listing ↗
May 10, 2017 2004 Audi S4 Avant 6-Speed – 79k mi $11,000bid to, not sold BaT listing ↗
Oct 19, 2016 2004 Audi S4 Avant 6-Speed Nogaro Blue over Interior 92k mi $12,888bid to, not sold BaT listing ↗
Aug 19, 2016 2005 Audi S4 Avant 6-Speed – – $10,500bid to, not sold BaT listing ↗

How to read these numbers

  • Every price is a completed Bring a Trailer sale and links to its listing. Asking prices are not counted anywhere.
  • The price is the winning bid. The buyer pays Bring a Trailer's fee on top of it.
  • Variants are never averaged together, and conversions, race cars and projects are listed but left out of the medians.
  • Mileage and colors are read from each listing's title and short description. Mileage is rounded there, so a "22k" car may have a few hundred miles either side, and a dash means the listing's summary didn't state it.
  • Cars we sold ourselves are marked and open the car's own page, with its photos and history.

Reimel Motor Cars is an independent dealer and an official Bring a Trailer Local Partner. This page is our own summary of published results and is not produced or endorsed by Bring a Trailer.

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