The only rattles (other than the ever present pinking!!) that mine seems to suffer from is a noise I can't identify from somewhere inside the doors - think it might be the locking rods. Keep meaning to take the door cards off and give em a tweak..
Back seat latches used to squeak, soon cured with a little blob of copaslip..
Roof gutters used to rattle at speed until they got a blob of Sikaflex adhesive sealant...
Other than that it's quieter than my old BMC 1100, with far less wind noise, and a LOT quieter than my girlfriends Vauxhall Viva HA!