[Bicyclist]

Yeah, but the fact your seat is back when you grab it makes it feel longer in my experience.

 

[Red Bull]

A 10-20mm longer stem would make the top tube feel much longer without changing the wheelbase. Also, raising the bars a bit will make the bike feel bigger. I know everybody says lower is better, but at your height, you should be running some spacers.
I'm 6'1" and I ride a large DHR. I know guys taller riding a med.

my steerer is cut way too short to do anything involving spacers. and im running a 60mm romic integrated stem so thats all set there.

my seat is as far back as it can go without hitting the rear wheel.