Ran it down to around 12 gallons/13.2 (45L to fill up), the needle was past the 'E' mark so I could have run another 20-30 miles if necessary. I've got no qualms running down to the line when looking for a fill, ideally I'll have a station within sight before the needle drops below E.
Oh hay, just checked my Fuelly and I've got 3 tanks >12 gallons (45L), almost exactly what the OP describes.
http://www.fuelly.com/car/scion/fr-s...tcaster/177974
Also agreed that the fuel pump thing is nearly an old wives tale at this point, it's a good habit to fill regularly so you're not stranded but I think fear mongering an 'expensive fuel pump replacement and possibly more damage is imminent if you run past the fuel light!' is silly.