Bluetooth was originally just for hands-free phone calls but has evolved into providing streaming music from a portable device. It also serves as the link between a car's infotainment system and smartphone apps. Compatibility issues that have plagued the connection between phones and cars can still be a problem, however. That's why it's important to make sure your devices and new car can communicate with one another. In fact, when you're test-driving new vehicles, make sure to spend time trying out the tech features. Get to know the operation of the infotainment system, understand how the car connects to the cloud and which apps are available, listen to the audio system and check out its music sources, enter a destination into the navigation system, and pair your device with the car via Bluetooth and make a few phone calls. This way you lessen your chance of buying a car with poor technology that you are stuck with for years.