Install one of this camera in your car it might helps you sometime. It is a Vehicle Safeguard Camera System which will do recording while you driving, the recorded details will be saved in the SD card on the slot (support up to 2GB). Just in case you need evidence in police station or insurance company. It can be powered either by 12V DC power via cigarette lighter or two AA batteries. Vehicle Safeguard Camera System is available for $79.90.

[via Redferret]