Until it happens. I had a brand new Renault Laguna back in 96. It came with faulty dampers that did cause the car to spin twice for no apparent reason. As you might guess, they 'knew all about it'... The joke was they stripped out the captive nut on one of the top mounts and it took them a week to get parts, remove the fuel tank and repair it.... The time to replace dampers is before they get bad, but we all leave it a while longer. Our 2014 car, and I noticed our 2016 both need new rear dampers although they drive OK you can see the wheels are just starting to be uncontrolled over ripples in the surface when observing from behind. Loosing it on a dual carriageway roundabout at speed was not nice. Thankfully There was space and no damage was done. Next time might well be less lucky.