proactive
Enjoying a drop of red.
Yes, car dealers fit part worn tyres. So what? You would have to be pretty naïve to think that they didn't. Part Worn does not mean bald, illegal or lethal. I know definitely that Lamborghini Manchester have bought partworn tyres from a dealer in Stafford in the past and they sell cars of £80k upwards.
I'm sure some part worn tyres are perfectly safe if bought from somewhere reputable.
However, anyone who spends £80k on a Lambo and then fits part worns needs their head examined.