wheel spacers ?

[snapper]

Sierra ET is 38 that is 1 1/2" in to the arch
Mondeo can be as much as ET 59 which is 2 1/3" in
A spacer of 20mm would do it but you would need much longer studs fitted
Older rear wheel drive wheels such as those fitted to Escorts generaly have ET near zero
Caterham Minilite wheels are often ET23, I have a set of Two Gates 6x14 on the car which are ET23 and a set of Compomotive 6 x 13 which are ET 22