One of the greatest innovations in the last few years is GPS car tracking systems . They have come a long way and are very cheap now. You can purchase these for your own car for just some extra security or you can buy them for your fleet of trucks to keep track of all your employees wherever they may go. Also they are a great way to keep track of your teens when they are new to the driving word. Keeping track of your teens can be a daunting task but with the new GPS system you know exactly where they go.