| 2005 - 2001 New (Villa Rica PRODUCTION) | ||||||||||
| Code | Year | Body | Model | ENGTYPE | CID | LITER | FUEL | FUELDEL | ASPIRATION | |
| 05R-CV | 2005 | AVANTI New 2 DR CONVERTIBLE | V8 | GAS | FI | N | ||||
| 05R-CU | 2005 | AVANTI New 2 DR COUPE | V8 | GAS | FI | N | ||||
| 04R-CV | 2004 | AVANTI New 2 DR CONVERTIBLE | V8 | 350 | 5.7 | GAS | FI | N | ||
| 04R-CU | 2004 | AVANTI New 2 DR COUPE | V8 | 350 | 5.7 | GAS | FI | N | ||
| 03R-CV | 2003 | AVANTI New 2 DR CONVERTIBLE | V8 | 350 | 5.7 | GAS | FI | N | ||
| 03R-CU | 2003 | AVANTI New 2 DR COUPE | V8 | 350 | 5.7 | GAS | FI | N | ||
| 02R-CV | 2002 | AVANTI New 2 DR CONVERTIBLE | V8 | 350 | 5.7 | GAS | FI | N | ||
| 02R-CU | 2002 | AVANTI New 2 DR COUPE | V8 | 350 | 5.7 | GAS | FI | N | ||
| 01R-CV | 2001 | AVANTI New 2 DR CONVERTIBLE | V8 | 350 | 5.7 | GAS | FI | N | ||
| 01R-CU | 2001 | AVANTI New 2 DR COUPE | V8 | 350 | 5.7 | GAS | FI | N | ||
| 1991 - 1987 AAV (KELLY / CAFFARO PRODUCTION) | ||||||||||
| Code | Year | Body | Model | ENGTYPE | CID | LITER | FUEL | FUELDEL | ASPIRATION | |
| 91R-CO | 1991 | CO | AVANTI AAV 2 DR CONVERTIBLE | V8 | 305 | 5.0 | GAS | CARB | N | |
| 90R-SE | 1990 | SE | AVANTI AAV 4 DR SEDAN | V8 | 305 | 5.0 | GAS | CARB | N | |
| 89R-SC | 1989 | SC | AVANTI AAV 2 DR SPORT CONVERTIBLE | V8 | 305 | 5.0 | GAS | CARB | N | |
| 89R-CC | 1989 | CC | AVANTI AAV 2 DR CLASSIC COUPE | V8 | 305 | 5.0 | GAS | CARB | N | |
| 88R-SC | 1988 | SC | AVANTI AAV 2 DR SPORT CONVERTIBLE | V8 | 305 | 5.0 | GAS | CARB | N | |
| 88R-CC | 1988 | CC | AVANTI AAV 2 DR CLASSIC COUPE | V8 | 305 | 5.0 | GAS | CARB | N | |
| 87R-LS | 1987 | LSC | AVANTI AAV 2 DR LUXURY SPORT COUPE | V8 | 305 | 5.0 | GAS | CARB | N | |
| 87R-SC | 1987 | SC | AVANTI AAV 2 DR SPORT CONVERTIBLE | V8 | 305 | 5.0 | GAS | CARB | N | |
| 87R-CC | 1987 | CC | AVANTI AAV 2 DR CLASSIC COUPE | V8 | 305 | 5.0 | GAS | CARB | N | |
| 1985 - 1983 RQ-B (BLAKE PRODUCTION) | ||||||||||
| Code | Year | Body | Model | ENGTYPE | CID | LITER | FUEL | FUELDEL | ASPIRATION | |
| 85R-QC | 1985 | RQ-C | AVANTI (.) 2 DR CONVERTIBLE | V8 | 305 | 5.0 | GAS | CARB | N | |
| 85R-QB | 1985 | RQ-B | AVANTI (.) 2 DR COUPE | V8 | 305 | 5.0 | GAS | CARB | N | |
| 84R-QB | 1984 | RQ-B | AVANTI (.) 2 DR COUPE | V8 | 305 | 5.0 | GAS | CARB | N | |
| 83R-QB | 1983 | RQ-B | AVANTI (.) 2 DR COUPE | V8 | 305 | 5.0 | GAS | CARB | N | |
| 1982 - 1970 RQ-B (ALTMAN PRODUCTION) | ||||||||||
| Code | Year | Body | Model | ENGTYPE | CID | LITER | FUEL | FUELDEL | ASPIRATION | |
| 82R-QB | 1982 | RQ-B | AVANTI II 2 DR COUPE | V8 | 305 | 5.0 | GAS | CARB | N | |
| 81R-QB | 1981 | RQ-B | AVANTI II 2 DR COUPE | V8 | 305 | 5.0 | GAS | CARB | N | |
| 80R-QB | 1980 | RQ-B | AVANTI II 2 DR COUPE | V8 | 350 | 5.7 | GAS | CARB | N | |
| 79R-QB | 1979 | RQ-B | AVANTI II 2 DR COUPE | V8 | 350 | 5.7 | GAS | CARB | N | |
| 78R-QB | 1978 | RQ-B | AVANTI II 2 DR COUPE | V8 | 350 | 5.7 | GAS | CARB | N | |
| 77R-QB | 1977 | RQ-B | AVANTI II 2 DR COUPE | V8 | 350 | 5.7 | GAS | CARB | N | |
| 76R-QB | 1976 | RQ-B | AVANTI II 2 DR COUPE | V8 | 400 | 6.6 | GAS | CARB | N | |
| 75R-QB | 1975 | RQ-B | AVANTI II 2 DR COUPE | V8 | 400 | 6.6 | GAS | CARB | N | |
| 74R-QB | 1974 | RQ-B | AVANTI II 2 DR COUPE | V8 | 400 | 6.6 | GAS | CARB | N | |
| 73R-QB | 1973 | RQ-B | AVANTI II 2 DR COUPE | V8 | 400 | 6.6 | GAS | CARB | N | |
| 72R-QB | 1972 | RQ-B | AVANTI II 2 DR COUPE | V8 | 350 | 5.7 | GAS | CARB | N | |
| 71R-QB | 1971 | RQ-B | AVANTI II 2 DR COUPE | V8 | 350 | 5.7 | GAS | CARB | N | |
| 70R-QB | 1970 | RQ-B | AVANTI II 2 DR COUPE (1st 5 RQ-A) | V8 | 350 | 5.7 | GAS | CARB | N | |
| 1969 - 1966 RQ-A (ALTMAN PRODUCTION) | ||||||||||
| Code | Year | Body | Model | ENGTYPE | CID | LITER | FUEL | FUELDEL | ASPIRATION | |
| 69R-QA | 1969 | RQ-A | AVANTI II 2 DR COUPE | V8 | 327 / 350 | 5.4 / 5.7 | GAS | CARB | N | |
| 68R-QA | 1968 | RQ-A | AVANTI II 2 DR COUPE | V8 | 327 | 5.4 | GAS | CARB | N | |
| 67R-QA | 1967 | RQ-A | AVANTI II 2 DR COUPE | V8 | 327 | 5.4 | GAS | CARB | N | |
| 66R-QA | 1966 | RQ-A | AVANTI II 2 DR COUPE | V8 | 327 | 5.4 | GAS | CARB | N | |
| 65R-QA | 1965 | RQ-A | AVANTI II 2 DR COUPE (5 PROTOTYPES, ONLY) | V8 | 327 | 5.4 | GAS | CARB | N | |
| 1964 RQ (Studebaker Production) | ||||||||||
| Code | Year | Body | Model | ENGTYPE | CID | LITER | FUEL | FUELDEL | ASPIRATION | |
| 64R-Q1 | 1964 | RQ | AVANTI 2 DR COUPE | R1 | 289 | 4.8 | GAS | CARB | N | |
| 64R-Q2 | 1964 | RQ | AVANTI 2 DR COUPE | R2 | 289 | 4.8 | GAS | CARB | S | |
| 64R-Q3 | 1964 | RQ | AVANTI 2 DR COUPE (9 OF A KIND, ONLY) | R3 | 304.5 | 5.0 | GAS | CARB | S | |
| 64R-Q4 | 1964 | RQ | AVANTI 2 DR COUPE (DUAL CARBURATED) | R4 | 304.5 | 5.0 | GAS | CARB | N | |
| 64R-Q5 | 1964 | RQ | AVANTI 2 DR COUPE (DUE CENTO, ONLY 1) | R5 | ? | GAS | CARB | S | ||
| 1963 RQ (Studebaker Production) | ||||||||||
| Code | Year | Body | Model | ENGTYPE | CID | LITER | FUEL | FUELDEL | ASPIRATION | |
| 63R-Q1 | 1963 | 63-RQ | AVANTI 2 DR COUPE | R1 | 289 | 4.8 | GAS | CARB | N | |
| 63R-Q2 | 1963 | 63-RQ | AVANTI 2 DR COUPE | R2 | 289 | 4.8 | GAS | CARB | S | |
| 63R-Q3 | 1963 | 63-RQ | AVANTI 2 DR COUPE | R3 | 299/304.5 | 5.0 | GAS | CARB | S | |
| 1962 | ||||||||||
| Code | Year | Body | Model | ENGTYPE | CID | LITER | FUEL | FUELDEL | ASPIRATION | |