0–100 km/h: 53 of 70 variants rated.
Renault 21 Nevada TD tops the Renault 21 ranking by 0–100 km/h, at 16.1 s.
Across 53 ranked variants, 0–100 km/h spans from 7.4 s to 16.1 s.
| # | Variant | Year | Body | Fuel | 0–100 km/h |
|---|---|---|---|---|---|
| 1 | Renault 21 Nevada TD | 1991 | Wagon | Diesel | 16.1 s |
| 2 | Renault 21 Nevada GTD | 1989 | Wagon | Diesel | 16.1 s |
| 3 | Renault 21 SD | 1989 | Sedan | Diesel | 16.0 s |
| 4 | Renault 21 SD | 1989 | Hatchback | Diesel | 16.0 s |
| 5 | Renault 21 TD | 1986 | Sedan | Diesel | 15.6 s |
| 6 | Renault 21 GTD | 1986 | Sedan | Diesel | 15.6 s |
| 7 | Renault 21 TD | 1991 | Sedan | Diesel | 15.1 s |
| 8 | Renault 21 TD | 1991 | Hatchback | Diesel | 15.1 s |
| 9 | Renault 21 GTD | 1989 | Sedan | Diesel | 15.1 s |
| 10 | Renault 21 GTD | 1989 | Hatchback | Diesel | 15.1 s |
| 11 | Renault 21 Nevada GTS | 1991 | Wagon | Petrol | 14.6 s |
| 12 | Renault 21 GTS | 1991 | Sedan | Petrol | 13.8 s |
| 13 | Renault 21 GTS | 1991 | Hatchback | Petrol | 13.8 s |
| 14 | Renault 21 Nevada TL | 1989 | Wagon | Petrol | 13.3 s |
| 15 | Renault 21 Nevada Turbo D | 1989 | Wagon | Diesel | 12.5 s |
| 16 | Renault 21 TL | 1989 | Sedan | Petrol | 12.5 s |
| 17 | Renault 21 GTL | 1989 | Sedan | Petrol | 12.5 s |
| 18 | Renault 21 TL | 1989 | Hatchback | Petrol | 12.5 s |
| 19 | Renault 21 GTL | 1989 | Hatchback | Petrol | 12.5 s |
| 20 | Renault 21 TL | 1986 | Sedan | Petrol | 12.0 s |
| 21 | Renault 21 Turbo D | 1989 | Sedan | Diesel | 11.8 s |
| 22 | Renault 21 Turbo D | 1989 | Hatchback | Diesel | 11.8 s |
| 23 | Renault 21 Nevada GTS | 1989 | Wagon | Petrol | 11.5 s |
| 24 | Renault 21 Nevada GTX | 1989 | Wagon | Petrol | 11.3 s |
| 25 | Renault 21 Nevada TXE | 1989 | Wagon | Petrol | 11.3 s |
| 26 | Renault 21 GTX | 1989 | Sedan | Petrol | 10.8 s |
| 27 | Renault 21 TXE | 1989 | Sedan | Petrol | 10.8 s |
| 28 | Renault 21 GTX | 1989 | Hatchback | Petrol | 10.8 s |
| 29 | Renault 21 TXE | 1989 | Hatchback | Petrol | 10.8 s |
| 30 | Renault 21 Nevada GTX | 1989 | Wagon | Petrol | 10.7 s |
| 31 | Renault 21 Nevada TXE | 1989 | Wagon | Petrol | 10.7 s |
| 32 | Renault 21 GTS | 1989 | Sedan | Petrol | 10.7 s |
| 33 | Renault 21 GTS | 1989 | Hatchback | Petrol | 10.7 s |
| 34 | Renault 21 Nevada GTX | 1987 | Wagon | Petrol | 10.7 s |
| 35 | Renault 21 TS | 1986 | Sedan | Petrol | 10.7 s |
| 36 | Renault 21 GTS | 1986 | Sedan | Petrol | 10.7 s |
| 37 | Renault 21 TSE | 1986 | Sedan | Petrol | 10.7 s |
| 38 | Renault 21 Nevada TXI | 1992 | Wagon | Petrol | 10.2 s |
| 39 | Renault 21 GTX | 1989 | Sedan | Petrol | 9.9 s |
| 40 | Renault 21 TXE | 1989 | Sedan | Petrol | 9.9 s |
| 41 | Renault 21 GTX | 1989 | Hatchback | Petrol | 9.9 s |
| 42 | Renault 21 TXE | 1989 | Hatchback | Petrol | 9.9 s |
| 43 | Renault 21 RX | 1987 | Sedan | Petrol | 9.9 s |
| 44 | Renault 21 GTX | 1987 | Sedan | Petrol | 9.9 s |
| 45 | Renault 21 TI | 1987 | Sedan | Petrol | 9.9 s |
| 46 | Renault 21 TXI | 1990 | Sedan | Petrol | 9.8 s |
| 47 | Renault 21 TXI | 1990 | Hatchback | Petrol | 9.8 s |
| 48 | Renault 21 GTX | 1987 | Sedan | Petrol | 9.7 s |
| 49 | Renault 21 TI | 1987 | Sedan | Petrol | 9.7 s |
| 50 | Renault 21 RX | 1986 | Sedan | Petrol | 9.7 s |
| 51 | Renault 21 TXE | 1986 | Sedan | Petrol | 9.7 s |
| 52 | Renault 21 Turbo Quadra | 1990 | Sedan | Petrol | 8.6 s |
| 53 | Renault 21 Turbo | 1988 | Sedan | Petrol | 7.4 s |