Jeep has an option for a 392 Hemi. Bett you ran into one of those.
LOL! Maybe so. At any rate he didn't want me to change lanes in front of him and once he turned it on that thought was abandoned. He did get a slight jump by going max earlier than I.

I've had similar experiences, all it takes to go fast is more money...............
I recently had a hot rod diesel pickup do almost the same thing as the Jeep did to you. Initially, I had no idea we were in a race to the next light and felt foolish for even playing the game with him. That diesel pickup was no where near stock and the "contest" ended with similar results. Although, I was on my trike and not the Cruiser or the "Rat" bike, I'm not sure it would have made a difference.
Rams