Steering wheel types

The RS branding is simply a bolt on piece of trim, the main differences IIRC in the factory spec steering wheels is between the Cup and non-Cup models.
 
So when did renault decide to include it in the factory build (non cup cars) is it from a specific date do you know ?
 
I think the trim came on the Cup Models - and aren't the cup wheels much less chunkier than the normal/full fat Clio's too? The trim can be bought for non-cup Clio's from various websites if you wanted to add it yourself.