The exhaust pipe heat shields may be rattling. Jack the car up and look for possible loose shields.
A CVT can make a grinding sound when the chain is on it's last legs. Judder will be most pronounced on a moderate to steep incline with light acceleration. Let off the gas at mid-hill, let the car coast momentarily down to 20~30 mph, then apply enough pedal to roll back up to speed. It should transition smoothly. If you feel any shuddering or surging, or the tach starts jumping around without pedal input, that's judder.I went to garage he checked no looses in exhaust and he said possibility on CVT.does CVT makes rattling noise? by the way car shudders in slow speed after accelerating