I'm flying with my family (2 kids under 5) from London to Atlanta on Dec 12and plan to drive from Atlanta to Miami. We need to be at Aventura in Miami by 4pm on Dec 14th. Whats the best route to take bearing in mind the traffic? We plan to leave for Miami on the 13th & stop overnight at a hotel along the highway then continue the following morning. Any advice on where to route, stops and traffic would be appreciated as it would be the first roadtrip in the US.