They are two version :

- white interior : 1981 - 1983/4 (with 4 spoke or 12 spoke Whizzwheels)
- red interiror : 1978 - 1991 (with 4 spoke or 12 spoke Whizzwheels)

Regarding the questions when white interiors were used I can't give you exact dates :

- that's they were starting in the 1981 boxes and continued in the 1983 and 1984 boxes. I have one with a brown driver figure, and trying to remove that figure without damaging the seat is quite risky (I tried a little but didn't want to break something), so I guess this must indeed come from the post-Mettoy period.

Wheels were plated plastic, 4 spoke, Bond was moulded in black, like before, but only face and hand were painted, passenger was blue plastic without paint at all and the interior is white :

1981

Wheels were plated plastic, 12 spoke, Bond was moulded in black, like before, but only face and hand were painted, passenger was blue plastic without paint at all and the interior is white :

1983

Wheels were plated plastic, 12 spoke, Bond was moulded in brown not painted, passenger was blue plastic without paint at all and the interior is white :

1984

the interior is red :

1978-1980

1981-1982

1983

1984

1985...