If you want more solid evidence of unsafe driving, you could mount an ultrasonic distance sensor to your bike: http://codaxus.com/c3ft/c3ft-v3/ http://codaxus.c

If you want more solid evidence of unsafe driving, you could mount an ultrasonic distance sensor to your bike: http://codaxus.com/c3ft/c3ft-v3/ http://codaxus.com/c3ft/c3ft-v3/