Ok, as I have two 15 whitewalls (mounted on falcon wheels) I thought I'd see if I can fit them in the rear wheelwells.
Anyone have any 15x7 Holden steelies just laying about?
The only thing that might fit would be some Volvo rims. Call a Volvo wrecker and see how you go.
Yuk! :P
If memory serves, the 15" Volvo rims are very similar to the commodore steel "pursuit" rims, having numerous holes around the wheel.
Something like this -
(http://market.autopartsfair.com/images/products/_wheels_/hgo29798f.jpg)