Vibration at speed please help

I am having an issue with Clio 197 at speeds about 60mph ish on motorway dual carriageway etc the car sumtimes gets a vibration as if the wheels are loose and it vibrates whole car but not steering wheel.

Things I've done:

got new tyres and balanced didn't sort it

jacked car up and there's no play in wheels at all

Any suggestions?
 
Did you get both front and rear wheels balanced? If you have vibration but not through the steering wheel then it could be the rear tyres.
 
Have you got spacers fitted ? What wheels do you have ? It defiantly sounds like a balancing issue with it only happening at a certain speed, have you had your rears balanced too ?
 
I would try swapping wheels front to back. Even though you had them balanced, they might not have done the job properly.... this has happened to me many times before.

If the problem is the rear wheels, swapping them to the front should result in steering wheel vibration.