Theyre the 5 spoke mondeo alloys that came on the mondeo mk2 zetec as standard.

Got a feeling they stick out too far, though somebody said they are a ET42 and my standards where ET40 ? but there seems a massive difference in how far these stick out compared to the old standard alloys, they must stick out a further inch, they are flush with the arch lip of the car now where as the old ones sat inside the arch?

edit these mondeo wheels -

http://www.ebay.co.uk/itm/Ford-Mondeo-Si-5-Spoke-Alloy-Wheel-16-Inch-K8A42754-/270886906323?pt=UK_CarParts_Acc_Wheels_tyres_Trims _Car_Rims_ET&hash=item3f121e29d3

How does offset work, is it higher the number the more they stick out, lower the number the more they stick in, so ET45 would stick out more than ET35 would?

Appears my standard alloys where et52 and the mondeo are et40 ?
Thanks