This is a bit of a WWYD I guess.
We've been to look at a car today which has clearly belonged to a smoker - cigarette burn in the front seat and a mild smokey smell. The car hasn't been valeted yet and the man at the garage said the smell would come out, so come back and have a look next weekend when it's been done.
I don't doubt that the smell may well come out, but we have an 8 month old DS and plan to have another baby on the next couple of years. My concern is that there will still be nicotine in the seats that could affect their lungs, even when the smell is gone.
Of course, if it weren't for the cigarette burn, we might have tried it after valeting and never known that it belonged to a smoker, but I do know and it's playing on my mind. The car is otherwise ideal and there isn't much else about within our budget.
I can't find out much about older second/third hand smoke in cars. Anyone got any thoughts?