The biggest problem is the speed limiter...
Next would be power...
Don't the Zetec Mondeo's come stock with more HP than ours?
SVT's are drag limited to 143 though some have hit higher.

V6's here are speed limited to about 120 IIRC. I think the car can do it with a couple mods(firstly a chip) and, of course, an MTX. Or, more mods with an ATX. Mine will run right up to about 108 but the limiter kicks in and nothing. I'd like a chip but that wouldn't go well with a turbo so... My $.02