So my girlfriend is using a ford fiesta diesel for her daily commute to work and home . The car works like a charm except the vibrations in the interior are brutal, the dash and the shifter vibrate really alot. The engine itself is quite , starts right up , no problems at all , except for the brutal vibrations in the interior...I have visually inspected the engine monts and they look ok.. So is there anything I should check , is there a mount that fails but looks normal, any help would be appreciated , so that I could kill the vibrations of the interior.

Thanx in advance.