Hi Steve you are correct, they were the R30s
Scanned some more although some of these were water damaged.
http://i448.photobucket.com/albums/q...iSierra2sm.jpg
http://i448.photobucket.com/albums/q...CroftBMW-2.jpg
http://i448.photobucket.com/albums/q...Sorensen-2.jpg
http://i448.photobucket.com/albums/q...nnyHulme-2.jpg
http://i448.photobucket.com/albums/q...rsSierra-2.jpg
THe Heyer Audi seems to have just disappeared, has a lot of people looking for it over her in Aus but no leads.
http://i448.photobucket.com/albums/q...eyerAudi-2.jpg