Another possibility : he misjudged distance in the dark. Very difficult to tell depth by tail lights

How can he be arrested for wreckless diving??? He smashed up the car!!!! (rimshot)

The ECM or OnStar have GPS that automatically record speed, throttle opening and vehicle location with airbag depolyment.

 They acknowledge that police work has its risks. Public safety demands that the officer takes efforts to apprehend this offender.