Back in 2019 I test drove a second-hand A3 and an A4 Sport back to back and I immediately noticed the difference in road noise and ride quality between the two cars. The A3 was the Sport model and although my wife has a second hand 2014 A3 convertible, the first owner had deselected the sport suspension when placing the order so her car doesn't ride too badly. Needless to say I choose the A4 Sport model that has the "comfort dynamic" suspension and 70K miles later have not regretted it.