Is there a set of specifications which MUST be satisfied for a wheel to be compatible with a car - my 1993 S13 in this case ? I know they need to be 4-stud that's all.

I need to get some rims sorted before doing bodywork and fitting some panels. Im considering Rotas but also like the look of Superlite 3-piece alloy ones. Can you supply any brand of alloy wheels ?