1999 Dodge Neon Burnt Rubber Smell and smoke

I was driving it for 20 minutes (clear day, no rain or snow, 45 degrees out) when a horrible burnt rubber smell started coming into the car. Eventually I saw smoke over the right tire/right side of the hood. I made it home 20 minutes later and the smell was horrific and seemed to come from the tire. I looked under the hood and nothing seemed to be the cause of the burning smell. A day later I drove it without a problem. What could that have been?