i just bought the diamante last weeek but when i accelerate gas padel vibrates and i hear sound in front wheels. can anyone tell whats going on? please......

 

note its 2002 diamante VR-X

 

Could be anything from warped rotors to bad tires or defective half-shafts. You don't state how many miles are on the car, but I'm going to suggest having the half-shafts checked. Also known as axles if you prefer. I had a similar situation with an 87 Caravan and that's what it was.