We had a 3 way drag awhile back. It was me (on the DS), a Banshee & a CR250. I was surprised at how well I kept up with the CR250 considering what it is, but once I got through into my 4th gear he walked away from me quickly. Bikes are fast no doubt.
My brother had a CR125. It was really modded & quick too. It's powerband hit was like someone punching you in the back. I can't imagine a CR500 !