I was taking the street, because at that time the freeway was slow. I passed by the Lexus dealership and came up to a new black SC430 in the right lane at the red light. I riled him up a bit by getting a half a length off at the start before we both had to slow for a ditch. We were next to each other as we drove on until a slow truck was coming up on his lane. We were going in the tunnel underpass and I knew he was going to pass the truck and cut me off. I floored it and denied the pass cut. The rest of the way back he had to stay behind me, because of constant traffic.