Im looking to buy a set of alloys/tyres from a company called wheelbase, can someone tell me what ET size i need for my S2 as i have a choice of 3 wheels....

100+ Monza R in white (red car)

or

Wolfrace voodoo's (silver, the ones in my sig were 17"s)

or

Mondeo 5 spoke's

Im only going to 16" as i dont want any rubbing issues.

Cheers