I went 160mph or 257kmh(?) one time when I had a 2006 si just to try it. A little scary because the car felt like every little bump I hit, it wanted to lose control, so I didn't go any further.
I only ever took my car to 140, wasn't anything special.
I like accelerating fast better than just driving at high speeds.
Anybody can go fast, but how fast can you go fast? haha