Car cameras are an excellent way to prove your not guilty of something. This could be as simple as getting a ticket for not fully stopping at a stop sign... when you did... or causing an accident... when it really was not your fault. Seriously, every vehicle should have one of these for a huge list of reasons. I personally use a car camera all the time in my car. I could not imagine a time when I would not be worried a little if I did not have it... I actually worry a bit if I am in a rental and forgot to bring it.
GPS Vehicle trackers form an important part of general security. How can you go wrong! Your car is stolen... just call it up and see where it is! Too easy.
Fleet owners must constantly worry where their vehicles are and what the drivers are up to... up until now. Any business owner who has vehicles that employees drive would sleep so much better knowing they can see live or view a history of the vehicles locations, times, speeds and the like. It is a must in these times considering the low price these GPS units cost.