TMG; Must be a trick on the eye. I measured the movement in the tire and the rim. Tire is marginally more but you would expect that because of the larger diameter. The tire was flatted a bit in 2011 when I was not able to drive the car for a longer period. But I have done 3000km since, so I thought that would have sorted itself by now.
Dave, probably true for cars, (one of the rims on my Plus4 was like this, used it as a spare) but on my bikes I never had wobbles like these. Makes you wonder why the difference.
Cheers J