He wants something 'sensible'. Either he does, in which case an old BMW is not sensible, or he doesn't really want something sensible in which case why not.
I said I wanted something 'fairly sensible'. If you read my original post you'll also see I currently have a modified R26 Megane.
I'm fairly confident taking my kids to school and nursery in a standard 5dr 12yr old BMW is more 'sensible' than taking them in a modified 3dr 12yr old Megane.
Context is everything here. This is a motoring forum, mostly full of people who enjoy their cars/driving. If I wanted full on sensible I'd buy a 1.0 focus, but considering what I currently own, and what I'm asking about, its fairly clear that's not what I want or implied when I used the word sensible.