punto mk1 rattle

av got a metal sounding rattle coming from my gf mk1 punto it sounds like its from the front of the car wen she is acelarating going around 30mph.i think it could be exhaust but has eny 1 got eny idears

i have a rattle, which, after a little bit of investigation i found out to be the front drivers side caliper. there is a clip that has come off mine. check its still there on ures