Fabia:
Mine was stock besides tyres/alloys
"feels" as quick as the 182 due to the amount of torque available right off idle, but you have to shift so much more and does not like to be revved out.
Build quality is better
white seats stain easily
cluch, steering and shifter action are all light
Brakes, even though upgraded from the base Fabia are actually pretty weak.
Gets amazing MPG under all conditions (45-50 on average)
182:
obviously quicker, but you need to rev it out much more to get there.
easily out handles the Fabia, even with the ditchfinder tyres currently mounted (VRS had Avon ZZ5's)
Brakes are very good
Steering is nicely weighted
More interior nice things (climate control, radio is better, cruise control, etc)
clutch is tough for me to get used to due the abrupt and small engagement
Makes much better sounds
I only got about 30 MPG in the one day I drove it
Has that rarity/coolness factor that the Fabia, even though a VRS was missing.
The 182 was an emotional purchase for me, not the smartest, but I have always wanted one (especially since we don't get them in the US) But when the opportunity presented itself I jumped on it. It had lower miles, and a MOT with no advisories. I do need to change out the temp sensor though, the temp gauge drops down a little then goes back up to center.