I wonder who they stole their colour scheme from!
The Bellett GT-R came out in 1969 and the Avenger GT in 1970. Isuzu should sue! Probably a bit late now....
Also, for those Australian trainspotters, the Hillman Avenger is actually ALSO a Chrylser Centura... except our Centuras had a longer nose to fit the 245ci Valiant six cylinder in there. That's a lot of engine....