Audio credits

Sound

Some engine recordings in this game come from real recordings published under free licences, trimmed and normalised for use in the app.

• Demo: Koenigsegg Agera (2011) — Edvvc, Goodwood 2010, CC BY-SA 3.0. Matching model. Excerpts at original speed and pitch. source licence
• Demo: Pagani Zonda R — Edvvc, Goodwood 2009, CC BY-SA 3.0. Pagani marque reference; not a Huayra recording. Excerpts at unchanged pitch and speed. source licence
• Demo: Ferrari 458 Italia — Edvvc, Goodwood 2010, CC BY-SA 3.0. Ferrari reference for the Koenig Specials conversion; not its exact engine. Excerpts at unchanged pitch and speed. source licence
• Sports demo: Ford F3L (1968) and Nissan GT-R SpecV — Edvvc, Goodwood 2010 and 2009. CC BY-SA 3.0. Original recordings at unchanged pitch and speed; excerpts provide atmosphere, not the engines of the displayed cars. source licence
• Second demo recording: Nissan GT-R SpecV — Edvvc, Goodwood 2009. Original source. source licence
• Ferrari 250 GTO engine sound — Provo rossi, CC BY 4.0 (edited work: trimmed and normalised). Power or torque rounds won with 12 or more cylinders. licence
• Rover V8 — Collard, public domain (edited work: trimmed and normalised). Power or torque rounds won with 8 to 10 cylinders. licence
• 2006 Porsche Cayman S engine sound — John64, CC BY-SA 3.0 (edited work: trimmed and normalised). Power or torque rounds won with 5 or 6 cylinders. licence
• Pass-by — derived from Provo rossi’s Ferrari 250 GTO, CC BY 4.0 (edited work: trimmed and normalised). Top-speed rounds. licence
• Engine shutting down — derived from Collard’s Rover V8, public domain (edited work: trimmed and normalised). Defeat verdict. licence
• Engine rev — Aston Martin V12 Vantage, recorded by Edvvc, CC BY-SA 3.0 (edited work: trimmed and normalised). Victory verdict and 4-cylinder engines. licence
• Engine start — Porsche 911R (1967), recorded by Edvvc, CC BY-SA 3.0 (edited work: trimmed and normalised). Used when a Legendary, Mythic or Atelier card is revealed. licence

Ambience music

Six classical recordings under free licences, one per venue family, trimmed and normalised for use in the app. Four of them (Bach, Chopin, Haydn and Beethoven) also take turns as the background music of the main menu. Only one plays at a time, it never starts on its own, and Music and Effects can be switched off separately.

• Chopin, Nocturne Op. 9 No. 2: performed by Aya Higuchi / Musopen (CC BY 4.0) source licence
• J. S. Bach, Air (BWV 1068) — Air Force Strings, United States Air Force Band (“Collage”, 2000). Public domain (US federal government) · source: Wikimedia Commons (edited work: trimmed and normalised). Plays at Villa d’Este and Pebble Beach. source
• F. Chopin, Nocturne op. 9 no. 2 — Aya Higuchi, piano (Musopen, 2015). Required credit: “Aya Higuchi / Musopen”. CC BY 4.0 (edited work: trimmed and normalised). Plays at Monterey. source licence
• J. Haydn, Quartet op. 64 no. 5 “The Lark”, II. Adagio cantabile — Musopen String Quartet (2012). Public Domain Mark 1.0 · source: Internet Archive (edited work: trimmed and normalised). Plays in the Curated Auction. source licence
• W. A. Mozart, Symphony no. 40 K. 550, I. Molto allegro — Czech National Symphony Orchestra (Musopen, 2012). Public Domain Mark 1.0 · source: Internet Archive (edited work: trimmed and normalised). Plays at Goodwood, Nürburgring, Le Mans and circuit. source licence
• L. van Beethoven, “Moonlight” Sonata op. 27 no. 2, I. Adagio sostenuto — Paul Pitman, piano (Musopen). Public Domain Mark 1.0 · source: Wikimedia Commons (edited work: trimmed and normalised). Plays at the drag strip. source licence
• G. Rossini, William Tell Overture, final galop — United States Marine Band, cond. Timothy Foley (2000). Public domain (US federal government) · source: Wikimedia Commons (edited work: trimmed and normalised). Plays at rally and Targa Florio. source

Everything else

The sports demo’s brief start, round and winner cues are stored AI-generated voice clips. English marque names retain browser pronunciation, with stored English clips when a suitable voice is unavailable. Other interface, countdown, rarity, auction room, launch, weight, applause and electric-motor effects are generated by the app using Web Audio synthesis.