you guys are silly. The symbol i posted is right.
Yeah what i posted is the closest japanese word to speed. Over there its on a good bit of cars, it looks great on a fender or quarter panel or something. But yeah it means "High Velocity" or "speed", Also can mean "one who lives on the fast lane"... Depends on usage.

Back when i was in Japan, I had a roomate who's girl had a tattoo on the back of her neck with that, and they said she was easy and speedy lol... so be careful where you put it.