From your first post you asked if wheels from a classic Mini would fit your Uno. They won't, as asides from the size being wrong, as JJHepburn pointed out, the PCD (stud spacing) is also incompatible. Different manufacturers use different PCD's, so you would need to ensure that the wheels you buy have a PCD of 98, which is a Fiat fitment.
You also need to ensure the offset is correct for the Uno as different wheels use different offsets depending on application. Fit wheels with the wrong offset and you can upset the handling and have issues with bump steer and rubbing.
'Minilite', despite its name is a style of wheel that's available in many different sizes for a whole range of manufacturers cars. They were famously known for being fitted to classic Minis but they are also available in other fitments. Contact sellers of these wheels and ask if they do them in Fiat fitment and with the correct offset for a Uno.
Good luck