| C.I. | Modelo | Año | Diseño | Tipo | Lugar |
| | Karmann Asso di Picche | 1973 | Italdesign | Coupé 3 puertas | 45º Internationale Automobil-Ausstellung (Franckfurt) |
| | Quartz | 1981 | Pininfarina | Coupé 3 puertas | 51º Salon International de l’Automobile de Genève |
| | Studie Auto 2000 | 1981 | | Sedán 4 puertas | |
| | Duo | 1989 | | Familiar 5 puertas | |
| | Duo II | 1990 | | Familiar 5 puertas | Salon International de l’Automobile de Genève |
| | quattro spyder | 1991 | Erwin Leo Himmel | Coupé 2 puertas | Internationale Automobil-Ausstellung (Franckfurt) |
| | Avus quattro | 1991 | – | Coupé 2 puertas | Tokyo Motor Show |
| | ASF (Audi Space Frame) | 1993 | – | Sedán 4 puertas | Internationale Automobil-Ausstellung (Franckfurt) |
| | TT Concept | 1995 | | Coupé 2 puertas | Internationale Automobil-Ausstellung (Franckfurt) |
| | TTS Roadster | 1995 | | Roadster 2 puertas | Tokyo Motor Show |
| | AL2 | 1997 | | Compacto 5 puertas | Internationale Automobil-Ausstellung (Franckfurt) |
| | AL2 Open End | 1997 | | Compacto 5 puertas | Tokyo Motor Show |
| | Steppenwolf project | 2000 | | SUV 3 puertas | Mondial de l’automobile de Paris |
| | Rosemeyer | 2000 | | Coupé 2 puertas | Autostadt |
| | Avantissimo | 2001 | | Familiar 5 puertas | 59º Internationale Automobil-Ausstellung (Franckfurt) |
| | Pikes Peak quattro | 2003 | | SUV 5 puertas | North American International Auto Show (Detroit) |
| | Nuvolari quattro | 2003 | Walter de Silva | Coupé 3 puertas | Salon International de l’Automobile de Genève |
| | Le Mans quattro | 2003 | | Coupé 2 puertas | 60º Internationale Automobil-Ausstellung (Franckfurt) |
| | RSQ | 2004 | | Coupé 2 puertas | Película “I, robot” (Alex Proyas, 2004) |
| | A2H2 | 2004 | | Compacto 5 puertas | Auto Shangai |
| | Allroad quattro Concept | 2005 | | Familiar/SUV 5 puertas | North American International Auto Show (Detroit) |
| | Q7 Hybrid Concept | 2005 | | SUV 5 puertas | 61º Internationale Automobil-Ausstellung (Franckfurt) |
| | Shooting Brake Concept | 2005 | | Compacto 3 puertas | Tokyo Motor Show |
| | Roadjet Concept | 2006 | | Coupé 5 puertas | North American International Auto Show (Detroit) |
| | Q7 V12 TDI | 2007 | | SUV 5 puertas | North American International Auto Show (Detroit) |
| | Cross Coupé quattro | 2007 | | SUV 5 puertas | Auto Shangai |
| | TT clubsport quattro | 2007 | | Roadster 2 puertas | Worthersee Tour |
| | A1 project quattro | 2007 | | Compacto 3 puertas | Tokyo Motor Show |
| | Cross Cabriolet quattro | 2007 | | Descapotable/SUV | Los Ángeles Auto Show |
| | R8 V12 TDI Concept | 2008 | | Coupé 2 puertas | North American International Auto Show (Detroit) |
| | Q7 Coastline | 2008 | | SUV 5 puertas | Salon International de l’Automobile de Genève |
| | A3 TDI clubsport | 2008 | | Compacto 3 puertas | Lake Wörther Tour (Austria) |
| | A1 Sportback Concept | 2008 | | Compacto 3 puertas | Mondial de l’automobile de Paris |
| | Sportback Concept | 2009 | | Coupé 4 puertas | North American International Auto Show (Detroit) |
| | e-tron | 2009 | | Coupé 2 puertas | 63º Internationale Automobil-Ausstellung (Franckfurt) |
| | Kompakt-e-tron | 2009 | | | |
| | A1 e-tron | 2010 | | | |
| | quattro Concept | 2010 | | Coupé 3 puertas | Mondial de l’automobile de Paris |
| | e-tron spyder | 2010 | | Descapotable 2 puertas | Mondial de l’automobile de Paris |