When driving up country on the weekend in a brisk manner I noticed that a get the feeling above a certain speed that

Mine does it too :(

Get your wheels balanced.

If you've had them done already, get them done somewhere else

Mine in intermitent, so not balancing

i thought badly balanced wheels showed up at around 56mph it always used in my other cars

Get your tyres fingerplate balanced.

Mine showed up at 60-70(ish) and it felt like car was shaking itself apart.

Get a good dealer, I had this and loads of places missed it until i visited a protyre place. I would recomend them if there is one near you as the other places reblanaced and it was still there and protyre confirmed that the tyres were 35g and 5g (i think) out!!

i thought badly balanced wheels showed up at around 56mph it always used in my other cars

Depends on the car's ability to mask vibrations etc. My Octavia had a vibration at 90mph that a local tyre fitter failed to solve on 3 occasions. One trip to Briskoda member "piv34uk" and all was well and good once he'd balanced them.

EDIT: Protyre were the ones who couldnt get mine right. Merityre got it right.

i thought badly balanced wheels showed up at around 56mph it always used in my other cars

Mine's always shown up dead on 70mph

Chris

i dont know if this helps but make sure they do anm inside and outside balance of the rim ie balance the outer rim near the kerb and then the rim closest to the car if yo know what i mean. Nopt everywhere does this unless asked and if it wasnt done properly causes problem esp on my old polo:)