Congrats!
So much for Fiat unreliability, eh?
On that topic, Mrs Stan's SEAT Leon has just tipped past 270k miles in her ten years of ownership, and for the first time has failed its MOT due to a hidden captive nut in the front subframe shearing off after new wishbones had been fitted. We suspect the new rubber/stresses on the weld caused it to shear but we'll know more when we get the grinder out and butcher it open to investigate before fitting the new subframe.
Modern cars, 80's onwards, do seem capable of mega-mileages if driven sensibly and serviced properly, well done!