My punto has quite a loud rattle when going over bumps, or going slow in first and reverse when the car judders. Took it to many garage they couldn't find anything, so finally took it to fiat and they just said its normal and that most punto's do it, said its simply the exhaust rattling.
This week it has had a really bad loud knocking/banging noise and a grinding noise too, and the heavier the load of the car the worse it was. It got really loud turning right, and stopped completely turning left. When i took it to get fixed that said it sounded like either the drive shaft or wheel bearings had gone. But turns out it was just the hand break cable had come loose!