No Wheels

We recently bought a new car. Well, a 2 year old car that is new to us if you want to be accurate.

I think it is just fine. It was meant to be my car after all as it replaced the one I used for work, but P says that now we are both retired it is our shared car and his old one is only used for messy trips, like taking stuff to the dump or collecting wood for the fire.   P is not happy with this new one. He says that the steering is off - it pulls to the right intermittently - and he says that it has a loud rattle somewhere in the rear end (I can't hear it as I am pretty deaf).  A friend ( who happens to be a mechanic) says that the steering issue is most likely due to an oversensitive sensor somewhere in the steering system.

P took it back to the garage a couple of weeks ago and the mechanic says he couldn't find anything wrong with it.  P says that they would say that wouldn't they.  I am content to carry on with it as I don't think it is unafe to drive but P insists that he is going to take it back on Monday and say that it is not fit for purpose and he intends to leave it with them until they fix it.  That will leave me without my own transport and relying on P for lifts wherever I need to go.

What would you do???