Police Car Chases Speeding Driver, Runs Into A Small Problem (VIDEO)

"Portland Police Traffic Officer Mark James attempts to catch up to a traffic violator," reads the rather solemn description of this video on YouTube - without giving any hint of the drama that's about to follow.

Click play to find out what happened when a Portland Police car set off after a driver who was doing 52mpg in a 35mph zone.

Warning: it's pretty jaw-dropping stuff.