I think people give the Minghams way too much credit saying this is for the views. I mean, why would the kiddie IFAM be enthralled by them being stuck in a layby like the tramps they are? Why would the ifam be all over their rustbucket finally giving up the ghost?
I dunno, I just think the simplest reason is the most likely. The incompetent fuckers failed to get their car serviced properly, haven't maintained it and used it to drag an oversized caravan loaded with tit. The engine couldn't cope and gave up. Occam's razor innit.