<P> In the 1980s, the car phone was more popular than the regular mobile phone . However, as mobile phones became lighter and more affordable during the mobile phone boom in the 1990s, car phones became less common . By the 2000s, car phones had become uncommon due to the convenience of mobile phones along with in - car mobile phone integrative technologies such as Bluetooth . </P> <P> There were still some car phones available as recently as 2008, including the Nokia 810 and the Motorola VC6096 for use with GSM networks and a car phone made by NAL Research for the Iridium satellite network . Motorola provided US customers with the m800 and m900 car phones, for use with CDMA and GSM networks respectively . Some car phones had color screens and supported high speed data connections as well as the ability to access SIM cards stored in other phones via Bluetooth . </P> <P> Recently, most automobiles feature integrated, "hands - free" systems to utilize a consumer's cellular phone, via a Bluetooth wireless link or use an integrated transceiver . The systems use an internally mounted microphone, and the car's audio system, and may feature voice activation and control . </P> <P> In many countries, restricting cell phone use while driving is on an upward trend . </P>

Who put the first radio in a car