By Gareth Butterfield Dash cams are one of the most popular car accessories out there at the moment, and largely because barely any manufacturers fit them to cars as standard. And that’s a pity, because they’re incredibly useful items to have on your windscreen. Not only will they keep a record of any incidents you find yourself in, but many of them have smart features that can keep you safe and legal while you’re on your journey. Some can even serve as a security feature, with live recording feeding you back images of suspicious activity around your vehicle while it’s parked up. They’ve becom…