Length is a bit of an issue, although the old mans crewman is worse because the bonnet seems so much longer than the Nav (dunno if it is I've never measured it). I find many car parks too short for the Nav which really does suck because when I used to work at the council we had to make all parks to a set size but it appears the rules have changed on that over the years.
I also tend to reverse park in shopping center car parks and the like, I don't care if I hold up traffic and don't care if people get upset I just take my time and reverse the Nav into parking spots at my leisure. Spent years reversing onto loading docks and the like in trucks much larger than the Nav so I guess I might be more used to parking larger vehicles than some people.