Minor correction to Mr. Fields response.. The northern end of the Auto Train spur is located in Lorton Virginia right off Interstate 95. (McLean VA is about 20miles north of the Auto Train platform end of the line.) I've used the AutoTrain 4x now and it really beats driving the 13-15 hrs to Orlando from norther VA.
The autotrain terminal operates out of Sanford northeast of this station about 25 miles and has limited destination outside of the Washington DC area {McClain VA.} on special schedules. Search the amtrak app for details about the Autotrain service
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