Yes, I thought about just putting a hose on the end to extend the reach of the tube, though that would mean leaving off the filter screen. I don't expect to be driving such marathons that I'll need that last two gallons. But in time I might do something about it. Thanks for your idea.
Just tried on one of the GTA wheels from my Berlina, original 6 x 14 with 195/65-14 tires. I like the look much better. These need a thin spacer on front not to hit the steering arm.