The driver jammed the flag down and pulled abruptly back into the traffic.

The driver of the car behind hadn't expected the sudden stop and jammed on his brakes.

The driver jammed that car forward to whizz between them.

The truck ahead came to a sudden stop as the driver jammed the air brakes.

The driver did not see more than a shadow and jammed on the brakes too late.

The driver of the truck jammed on the brakes and twisted the wheel.

The driver jammed the brakes; the man kept on, staring dead ahead.

The driver had jammed for a stop as he passed the pillar.

The driver of the car jammed his foot suddenly on his brakes.

Its driver saw Ping and jammed the brakes too late.