Wei cursed hard to himself, he was too slow! Most of the vans had already been stopped. He had hoped that the vans would have been able to make better time than this, but then he saw the wrecked cars blocking the road.
Time to intervene then.
The large blob of blood in the backseat flowed over the sides of the car and towards the wrecked cars blocking the way, sliding underneath them. The wrecked cars promptly flipped out of the way, onto the sidewalk, as he forced the blood into hardened pillars underneath each car blocking the way and slammed it into the underside of the car with considerable force.
As the leading truck began to speed through the newly created gap, Wei saw some of the supers take notice.
Hmm... Time for a bit of a distraction.
First, the super driving after the vans. That had to stop. Fortunately, she drove over a pool of blood and covered her tires in the stuff. After hardening and forming spiked pointed inwards, all Wei had to do was slam them into the tires, bursting all four in an instant, sending the car skidding out of control. Next, he had to distract the rest of the supers from following the lead vans. Forming multiple softball sized blobs of blook that flowed around the street, Wei simply lifted them off the street and floated them above the middle vans.
This should do the trick...
The blobs promptly exploded into a hail of spinning disks, covering the entire street with a fine mist of razor sharp blades made from blood, spinning at over 60 km/hr and slicing apart everything that they touched. As the leading vans tires squeeled on the road as they desperately tried to drive away from the red wall of blades, Wei simply started to slowly advance the wall towards the other supers, hopefully buying time for some of the other vans.