Hi,
I previously had a metal and just traded in for an ST! Definitely upgrade to the ST!
I used to think my metal had power but noooo. Nothing compared to this ST, the ST is a beast!
Get the ST you won't be disappointed. I thought I'd miss my metal but I'm that happy with my ST I haven't looked back.
Once your about 3000 revs and 2nd 3rd and 4 th gear have so much power it blew me away
I haven't drove the 1.0 L fiesta but have heard its quite nippy. But my dealer has the 1.0 L and he said he'd swap it for the ST any day
Hope this helps
Hannah :)