Pohotovostní hmotnost: 22 z 22 variant s údaji.
Rover 420 Si vede žebříček Rover Řada 400 podle Pohotovostní hmotnost, s 1 190 kg.
Mezi 22 seřazenými variantami se Pohotovostní hmotnost pohybuje od 1 019 kg do 1 190 kg.
| # | Varianta | Rok | Karoserie | Palivo | Pohotovostní hmotnost |
|---|---|---|---|---|---|
| 1 | Rover 420 Si | 1997 | Sedan | Benzin | 1 190 kg |
| 2 | Rover 420 SLi | 1996 | Sedan | Benzin | 1 190 kg |
| 3 | Rover 420 Di | 1999 | Hatchback | Diesel | 1 180 kg |
| 4 | Rover 420 SDi | 1998 | Sedan | Diesel | 1 180 kg |
| 5 | Rover 420 Di | 1997 | Sedan | Diesel | 1 180 kg |
| 6 | Rover 420 D | 1996 | Sedan | Diesel | 1 180 kg |
| 7 | Rover 420 D | 1996 | Hatchback | Diesel | 1 180 kg |
| 8 | Rover 418 GSD Turbo | 1991 | Sedan | Diesel | 1 150 kg |
| 9 | Rover 420 GTi | 1992 | Sedan | Benzin | 1 145 kg |
| 10 | Rover 416 Si Luxe | 1998 | Sedan | Benzin | 1 130 kg |
| 11 | Rover 416 GSi | 1991 | Sedan | Benzin | 1 085 kg |
| 12 | Rover 416 Si Oxford | 1999 | Sedan | Benzin | 1 080 kg |
| 13 | Rover 416 Si Oxford | 1999 | Hatchback | Benzin | 1 080 kg |
| 14 | Rover 414i | 1997 | Hatchback | Benzin | 1 080 kg |
| 15 | Rover 416 Si | 1996 | Sedan | Benzin | 1 080 kg |
| 16 | Rover 416 Si | 1995 | Hatchback | Benzin | 1 080 kg |
| 17 | Rover 414i | 1998 | Sedan | Benzin | 1 075 kg |
| 18 | Rover 416 SLi | 1994 | Sedan | Benzin | 1 073 kg |
| 19 | Rover 416 GSi | 1991 | Sedan | Benzin | 1 073 kg |
| 20 | Rover 414 SLi | 1994 | Sedan | Benzin | 1 019 kg |
| 21 | Rover 414 Si | 1993 | Sedan | Benzin | 1 019 kg |
| 22 | Rover 414 Si | 1991 | Sedan | Benzin | 1 019 kg |