0–100 km/h: 18 of 18 variants rated.
Rover 618 Si tops the Rover 600-Series ranking by 0–100 km/h, at 13.5 s.
Across 18 ranked variants, 0–100 km/h spans from 8.6 s to 13.5 s.
| # | Variant | Year | Body | Fuel | 0–100 km/h |
|---|---|---|---|---|---|
| 1 | Rover 618 Si | 1997 | Sedan | Petrol | 13.5 s |
| 2 | Rover 618i | 1996 | Sedan | Petrol | 13.5 s |
| 3 | Rover 620 Si Luxe | 1996 | Sedan | Petrol | 12.0 s |
| 4 | Rover 620 Si | 1993 | Sedan | Petrol | 12.0 s |
| 5 | Rover 620 Di Cambridge | 1998 | Sedan | Diesel | 11.6 s |
| 6 | Rover 620 Di E | 1997 | Sedan | Diesel | 11.6 s |
| 7 | Rover 620 SDi | 1996 | Sedan | Diesel | 11.6 s |
| 8 | Rover 620 Di | 1995 | Sedan | Diesel | 11.6 s |
| 9 | Rover 620i Luxe | 1995 | Sedan | Petrol | 10.9 s |
| 10 | Rover 620i | 1993 | Sedan | Petrol | 10.9 s |
| 11 | Rover 618i | 1998 | Sedan | Petrol | 10.8 s |
| 12 | Rover 618i Cambridge | 1998 | Sedan | Petrol | 10.8 s |
| 13 | Rover 618i E | 1997 | Sedan | Petrol | 10.8 s |
| 14 | Rover 618i | 1996 | Sedan | Petrol | 10.8 s |
| 15 | Rover 618 Si | 1996 | Sedan | Petrol | 10.8 s |
| 16 | Rover 620 Si Business | 1997 | Sedan | Petrol | 10.2 s |
| 17 | Rover 620 Si | 1993 | Sedan | Petrol | 10.2 s |
| 18 | Rover 623 Si | 1994 | Sedan | Petrol | 8.6 s |