W123 roll

[sceh]

I know the W123 is no sports car, especially the diesel 240TD but I notice mine rolls a bit when I go round a roundabout. The roll-bar bushes are new as are the connecting rods and the SLS system has been full overhauled.
This could be subjective and I am just comparing with my other more modern cars but is there any objective test I can do?

thanks