Peerless under heaven - can be interpreted in many ways -
good way= invincible, pure awesomesauce, Chuck Norris to the nth degree
bad way = outcast or a consumnate idiot

The way Drifts rep is with fans "peerless under heaven" = modern day wheelie

I like how they have those kanji "rune" scribbles on the sword, reminds me of the sword in Crouching Tiger , Hidden Dragon