0–100 km/h: 21 of 21 variants rated.
Mazda 121 1.8 TD LX tops the Mazda 121 ranking by 0–100 km/h, at 17.4 s.
Across 21 ranked variants, 0–100 km/h spans from 11.4 s to 17.4 s.
| # | Variant | Year | Body | Fuel | 0–100 km/h |
|---|---|---|---|---|---|
| 1 | Mazda 121 1.8 TD LX+1 | 2000 | Hatchback | Diesel | 17.4 s |
| 2 | Mazda 121 1.8 D LX+1 | 1996 | Hatchback | Diesel | 17.4 s |
| 3 | Mazda 121 1.8 D GLX+1 | 1996 | Hatchback | Diesel | 17.4 s |
| 4 | Mazda 121 1.3i GLX+1 | 2000 | Hatchback | Petrol | 15.9 s |
| 5 | Mazda 121 1.3i LX | 1998 | Hatchback | Petrol | 15.9 s |
| 6 | Mazda 121 1.3i LX | 1996 | Hatchback | Petrol | 15.9 s |
| 7 | Mazda 121 1.3i GLX+1 | 1996 | Hatchback | Petrol | 15.9 s |
| 8 | Mazda 121 1.25i GLX+1 | 1996 | Hatchback | Petrol | 15.6 s |
| 9 | Mazda 121 1.3i LX | 1991 | Sedan | Petrol | 13.7 s |
| 10 | Mazda 121 1.1 DX | 1988 | Hatchback | Petrol | 13.6 s |
| 11 | Mazda 121 1.1 L | 1988 | Hatchback | Petrol | 13.6 s |
| 12 | Mazda 121 1.25i GLX+1 | 2000 | Hatchback | Petrol | 12.7 s |
| 13 | Mazda 121 1.25i LX+1 | 1998 | Hatchback | Petrol | 12.7 s |
| 14 | Mazda 121 1.25i GLX+1 | 1996 | Hatchback | Petrol | 12.7 s |
| 15 | Mazda 121 1.25i GLX Cabrio Top | 1996 | Hatchback | Petrol | 12.7 s |
| 16 | Mazda 121 1.3 LX | 1988 | Hatchback | Petrol | 12.0 s |
| 17 | Mazda 121 1.3 Cabrio Top | 1988 | Hatchback | Petrol | 12.0 s |
| 18 | Mazda 121 Coupé | 1979 | Coupe | Petrol | 12.0 s |
| 19 | Mazda 121 Landau Coupé | 1979 | Coupe | Petrol | 12.0 s |
| 20 | Mazda 121 1.3i GLX | 1991 | Sedan | Petrol | 11.4 s |
| 21 | Mazda 121 1.3i GLX Cabrio Top | 1991 | Sedan | Petrol | 11.4 s |