The are way different offset. EF series is between 0 to 6 offset (dependin on rim width). AU is 35 to 42 offset. So the e- series ones would stick out about an inch further than the AU offset ones. Good for cutting tyres on the inside lip of the guards (I know from experience)
you could probably get away with it on the rear but the fronts would get all chopped up real quick.
Remember, a lot of people have no idea about offset, they see falcon rims and a matching stud pattern and away they go.
Just hope it doesnt get into an accident cause the insurance is now VOID!!!
More like 35mm, not an inch - ie heaps! I've seen an AU wagon with EF/L 16" Ticky's on it, looked tough as the way the wheels stuck out, but as above, not something to recommend. Also you'd be putting more load on the wheel bearings and also upset the steering geometry a bit.
You could by the EL 16 inch rims after market, cant remember who makes them but maybe they have an AU offset or something. Neways i dunno why you would bother going back in time, its alright to put new rims on an older car, but to put old rims on a newer car - I dont think so.