Is there any factual basis to the impression that Cessnas are more likely to run out of fuel than other types? The 172's 4hr provides far less margin of error than the Warriors' 5hr for a typical 3Hr touring day, (based on gross simplifications all round!) given that many pilots seem to have a reluctance to refuel enroute.
I wonder if this reluctance relates to what seems to be a virtually universal FBO mantra about fuel. It seems as though the fuel is always "cheaper here than anywhere else" putting the pilot under pressure not to refuel en route because he will only be credited back the local rate.
I wonder if that's a factor in many of these incidents? I know of one personally where it was, and that chap (in a 172) ran out at night and survived!