Earlier units included a CD player. In the mid-1990s, car navigation systems emerged, and by 2000, in-dash systems became a luxury car option. Subsequently, aftermarket in-dash navs became ...

The best dash cams monitor in high-res video what’s happening while you’re behind the wheel, with timestamps and GPS coordinates. They can even record while your car is parked, helping you ...

The best way to keep an extra set of eyes on your car -- and the road -- is by getting a dash cam. These devices vary in price quite a bit, with some models costing hundreds of dollars.

Here’s how it works. If we were buying a dash cam for our car, we’d want it to do one thing really well: record clear footage of the road ahead. Every dash cam in the list below does exactly that.