| Homologation | Version | Name | Class/Championship | Year |
|---|---|---|---|---|
| R1 | R1 | Audi quattro rallye | WRC Group 4 | 1980 |
| Audi quattro rallye A1 | WRC Group B | 1983 | ||
| Audi quattro rallye A2 | WRC Group B | 1983 | ||
| R2 | R2 | Audi Sport quattro rallye | WRC Group B | 1984 |
| Audi Sport quattro S1 rallye E2 | WRC Group B | 1985 | ||
| Audi Sport quattro S1 Pikes Peak | Pikes Peak | 1987 | ||
| R3 | R3 | Audi 200 rallye | WRC Group A | 1987 |
| R4 | R4 | Audi 200 Trans Am | Trans Am | 1988 |
| R5 | R5 | Audi 90 IMSA GTO | IMSA GTO | 1989 |
| R6 | R6 | Audi V8 DTM | DTM | 1990 |
| R7 | R7 | Audi 80 Competition | FIA Class II / Supertouring | 1993 |
| Audi A4 STW quattro | FIA Class II / Supertouring | 1995 | ||
| Audi A4 STW front-wheel drive | FIA Class II / Supertouring | 1996 | ||
| R8 | R8 | Audi R8R | LMP | 1999 |
| Audi R8 | LMP900 & LMP1 | 2000 | ||
| R9 | R9 | R8C | GTP | 1999 |
| R10 | R10 | Audi R10 TDI | LMP1 | 2006 |
| R11 | R11 | Audi A4 DTM (B6) | DTM | 2004 |
| R12 | R12 | Audi A4 DTM (B7) | DTM | 2005 |
| R12 Plus | Audi A4 DTM (B7) | DTM | 2006 | |
| R13 | R13 | Audi A4 DTM (B7) | DTM | 2007 |
| R14 | R14 | Audi A4 DTM (B8) | DTM | 2008 |
| R14 Plus | Audi A4 DTM (B8) | DTM | 2009 | |
| R15 | R15 | Audi R15 TDI | LMP1 | 2009 |
| R15 plus | Audi R15 TDI | LMP1 | 2010 | |
| R15 plus plus | Audi R15 TDI | LMP1 | 2011 | |
| R16 | R16 | Audi R8 LMS | FIA GT3 | 2009 |
| Audi R8 LMS ultra | FIA GT3 | 2012 | ||
| Audi R8 GRAND-AM | Grand Am GT | 2012 | ||
| R17 | R17 | Audi A5 DTM | DTM | 2012 |
| R18 | RP1 | Audi R18 TDI | LMP1 | 2011 |
| RP2 | Audi R18 ultra | LMP1 | 2012 | |
| RP2 | Audi R18 e-tron quattro | LMP1 | 2012 | |
| RP3 | Audi R18 e-tron quattro | LMP1 | 2013 | |
| RP4 | Audi R18 e-tron quattro | LMP1 | 2014 | |
| RP5 | Audi R18 e-tron quattro | LMP1 | 2015 | |
| RP6 | Audi R18 | LMP1 | 2016 | |
| RP7 (cancelled)[1][2] | Audi R18 | LMP1 | 2017 |
website reference (Wikipedia )
