Engine mouting vibration comes during take off only and not during driving. Or while idling at times if more than 1 mounting is bad.
If i am not wrong Mondeo has there mounting, 1 under front side of engine and 2 at the back, little bit aside the engine.
Get the wheel hub checked for slightiest play. If vibration is at specific speed like only from 70-90 and then ok and then again from 110-120 then for sure tires issue. If vibration starts from slow speed then it could be wheel bearing, front axles.
Explain more so that i can help you more precisely.