It could be a bad wheel bearing, it could be a need for chassis lubrication, it could be disc brakes which are worn out.
The wheel bearing.
Usually the accessory drive belt is faulty
to drive slowly
"They drove the car slowly" is past tense.
The squeak is your tires losing traction on the pavement. Prominent in rear wheel drive cars.
NO
Drive slowly and gently or replace the car.///////and do the required maintenance
If it squeaks while it moves but not while it's at idle then the squeaks are body or suspension noise.
ball joints
Check for looseness or play in the joint Do you hear a "Ping" when shifting from Park- Drive or Reverse? Do you hear a "Squeak, Squeak, Squeak" when driving down the road?
Cross any cracks at right angles, and drive slowly.
The car may need new brakes or tires because they might be wearing down.