The Internet of Things -- or IoT -- was one of the biggest topics at the South by Southwest Interactive conference in Austin. The impact of this technology on our economy is expected to far exceed that of smartphones.

One of the biggest beneficiaries of IoT will be your car, which is becoming a rolling extension of your home. General Motors (NYSE:GM) is now offering 4G connectivity in many of its vehicles. Ford (NYSE:F) is working on direct connectivity with your home. Tesla (NASDAQ:TSLA) is able to push out updates over the Internet to your car, eliminating costly trips to the shop.

Motley Fool analysts Rex Moore and Lyons George talk about these examples and more in this video from the floor of the SXSW trade show.