
Continuity mistake: When the police arrive at Victor's house the two guards in the security room decide to run. At this time the one with the long sleeved shirt is wearing his gun in a shoulder-holster. In the next shot, when those two guards are running out the door and down the stairs, the long sleeved guy's shoulder-holster has vanished, but as they run toward the van, the shoulder-holster reappears again. (01:32:50)
Answer: There might be a deleted scene showing an extended chase scene, but as it is, it seems out of place. From what I can tell, the road was slick, like something oily was spilt on the road during the chase. I don't think it's from the fruit and vegetable truck either. The bus looks like it's breaking suddenly (perhaps to avoid an unseen wreck) and skidded out and the driver over compensated, spinning the bus out. In fairness, a licensed bus driver would probably be able to control the bus in that situation, so it was exaggerated for the film. It probably should have been cut, but I'm guessing someone liked it and kept it in for more action.
Bishop73