I have a quite unusual 13" split rim wheel for sale.
It has 108mm and 4" pcd holes and is located by sleeve bolts rather than the usual nuts.
This means it can fit a variety of cars and does not rely on the middle bore for centring - very handy if you have different pcd front/rear as it
means you can carry a spare.
It and another couple of split rim wheels are on ebay with pics and full dimensions.
Go to :-
http://cgi.ebay.co.uk/3-piece-13-alloy-wheel-Ford-Saab-Pug-Audi-Mazda-/260671779625?pt=UK_CarParts_Acc_Wheels_tyres_Trims_Car_Rims_ET&hash=item3cb
13fb329#ht_1298wt_932