I have come to the conclusion that with a new vehicle the suspension should be able to put up with a few thousand k a year off the black top, if it can not whilst under warranty then they can replace it.
An old cocky friend of mine who always had a new Toyota or two/three every few years would always take the vehicles but to Toyota when he knew that the suspension was stuffed and would make them replace it. I said to him why did he not put a better suspension on them and he said he paid for an off road vehicle and why should he have to pay more money to make it last longer.
So I am going down the same track, If I use the vehicle to what they say I can and the suspension stuffs up I will ring their road side assist no.