Cash for Clunkers

The NY Times claims that the 750,000 cars turned into the “Cash For Clunkers” program would theoretically stretch from Los Angeles to Washington, D.C. That’s a lot of cars, but we’re talking from LA to DC here. Surely a traffic jam of derelict beaters couldn’t possibly reach all the way across the country? How long is a car anyway? And just how far is it from LA to DC?