New (07 MY) Mini Cooper - Ride Refinement?

[Geneve]

My wife is interested in a 6 month old Mini Cooper. It's on 16" run-flat tyres.

I drove it briefly and overall it felt very good, but I didn't pay much attention to the ride comfort.

However, several people have said that the ride can be tedious, particularly on the run-flats.

Is this true? Are the latest models better? Are there better tyre options?

Thanks

[Geneve]

I understand the accepted wisdom about the 16" wheels and non-run flat tyres.

Just wanted to check that this still applied to the new models?