They have much better build quality than Clio's of old and in turn sound insulation. I don't think in terms of noise it would be intrusive, more irritating. If my revcounter is showing 4.5k at a motorway cruise I think to myself s**t this is going to be guzzling the juice I should back off abit. However if in a (early) 197 4.5k is 80mph as per the previous models a quick glance at your revcounter would suggest your going abit quick, however in actual fact your just going the same speed as everyone else, pulling 4.6k revs would irritate me so yes it would be intrusive.