As above my missus has just recently bought a Corsa d 1.3 cdti as her first car, when accelerating hard in it 1st & second gear there is a vibration / grinding noise sounds like it's underneath the car, I might add when we bought the car it was lowered quite abit and looks as if it may have caught the underside a few times maybe bent the Dts bar??, it's now back on stock suspension and this noise is quite annoying, has anybody had any experience of this and know what it is? Thanks in advance